Uses more reliable api on main send screen; caches basic api results in modal

21 files changed, 309 insertions, 140 deletions

diff --git a/test/e2e/beta/fetch-mocks.js b/test/e2e/beta/fetch-mocks.js
index ee2d54f24..bb1702555 100644
--- a/test/e2e/beta/fetch-mocks.js
+++ b/test/e2e/beta/fetch-mocks.js
@@ -1,4 +1,5 @@
 module.exports = {
   ethGasBasic: JSON.stringify({'average': 85.0, 'fastestWait': 0.6, 'fastWait': 0.6, 'fast': 200.0, 'safeLowWait': 4.8, 'blockNum': 6648312, 'avgWait': 4.2, 'block_time': 15.516129032258064, 'speed': 0.7828720873342716, 'fastest': 400.0, 'safeLow': 80.0}),
   ethGasPredictTable: JSON.stringify([{'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 7.2632423756, 'pct_remaining5m': 0.0, 'sum': 7.029975, 'tx_atabove': 4136.0, 'hashpower_accepting': 10.4166666667, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 1.2, 'pct_mined_5m': 0.0, 'total_seen_5m': 1.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 7.433788122, 'pct_remaining5m': 0.0, 'sum': 7.01731875, 'tx_atabove': 4136.0, 'hashpower_accepting': 10.9375, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 1.5, 'pct_mined_5m': 0.0, 'total_seen_5m': 84.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 7.433788122, 'pct_remaining5m': 0.0, 'sum': 7.01731875, 'tx_atabove': 4136.0, 'hashpower_accepting': 10.9375, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 1.7, 'pct_mined_5m': 0.0, 'total_seen_5m': 5.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 7.4638844302, 'pct_remaining5m': 0.0, 'sum': 7.01731875, 'tx_atabove': 4136.0, 'hashpower_accepting': 10.9375, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 1.8, 'pct_mined_5m': 0.0, 'total_seen_5m': 20.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 7.4839486356, 'pct_remaining5m': 0.0, 'sum': 7.01731875, 'tx_atabove': 4136.0, 'hashpower_accepting': 10.9375, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 1.9, 'pct_mined_5m': 0.0, 'total_seen_5m': 8.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 7.7347512039, 'pct_remaining5m': 0.0, 'sum': 7.0046625, 'tx_atabove': 4136.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 2.0, 'pct_mined_5m': 0.0, 'total_seen_5m': 52.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 17.0, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 1.0, 'sum': 7.0046625, 'tx_atabove': 4136.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 2.1, 'pct_mined_5m': 0.0, 'total_seen_5m': 97.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 20.0, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 1.0, 'sum': 7.0040625, 'tx_atabove': 4135.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': 6.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 2.2, 'pct_mined_5m': 0.0, 'total_seen_5m': 433.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 68.0, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 0.0, 'sum': 6.9986625, 'tx_atabove': 4126.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': 2.0, 'int2': 6.9238, 'pct_remaining30m': 50.0, 'gasprice': 2.3, 'pct_mined_5m': 0.0, 'total_seen_5m': 14.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 0.0, 'sum': 6.9980625, 'tx_atabove': 4125.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 2.4, 'pct_mined_5m': 0.0, 'total_seen_5m': 4.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 20.0, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 37.0, 'sum': 6.9956625, 'tx_atabove': 4121.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': 4.0, 'int2': 6.9238, 'pct_remaining30m': 75.0, 'gasprice': 2.5, 'pct_mined_5m': 0.0, 'total_seen_5m': 45.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 79.0, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 0.0, 'sum': 6.9788625, 'tx_atabove': 4093.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 100.0, 'gasprice': 2.6, 'pct_mined_5m': 0.0, 'total_seen_5m': 3.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 27.5, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 100.0, 'sum': 6.9764625, 'tx_atabove': 4089.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 2.7, 'pct_mined_5m': 0.0, 'total_seen_5m': 3.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 22.5, 'hashpower_accepting2': 7.7447833066, 'pct_remaining5m': 66.0, 'sum': 6.9740625, 'tx_atabove': 4085.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 2.8, 'pct_mined_5m': 0.0, 'total_seen_5m': 6.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 20.0, 'hashpower_accepting2': 7.7548154093, 'pct_remaining5m': 38.0, 'sum': 6.9686625, 'tx_atabove': 4076.0, 'hashpower_accepting': 11.4583333333, 'hpa_coef2': -0.067, 'total_seen_30m': 2.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 2.9, 'pct_mined_5m': 2.0, 'total_seen_5m': 36.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 27.0, 'hashpower_accepting2': 11.5268860353, 'pct_remaining5m': 77.0, 'sum': 6.8307, 'tx_atabove': 4057.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': 127.0, 'int2': 6.9238, 'pct_remaining30m': 48.0, 'gasprice': 3.0, 'pct_mined_5m': 0.0, 'total_seen_5m': 322.0, 'pct_mined_30m': 39.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 67.0, 'hashpower_accepting2': 11.5268860353, 'pct_remaining5m': 100.0, 'sum': 6.5697, 'tx_atabove': 3622.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': 85.0, 'int2': 6.9238, 'pct_remaining30m': 98.0, 'gasprice': 3.1, 'pct_mined_5m': 0.0, 'total_seen_5m': 79.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 71.0, 'hashpower_accepting2': 11.5268860353, 'pct_remaining5m': 100.0, 'sum': 6.4311, 'tx_atabove': 3391.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': 7.0, 'int2': 6.9238, 'pct_remaining30m': 100.0, 'gasprice': 3.2, 'pct_mined_5m': 0.0, 'total_seen_5m': 4.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 62.0, 'hashpower_accepting2': 11.5268860353, 'pct_remaining5m': 100.0, 'sum': 6.4209, 'tx_atabove': 3374.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': 14.0, 'int2': 6.9238, 'pct_remaining30m': 92.0, 'gasprice': 3.3, 'pct_mined_5m': 0.0, 'total_seen_5m': 7.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 1472.0, 'hashpower_accepting2': 11.5569823435, 'pct_remaining5m': 100.0, 'sum': 6.3951, 'tx_atabove': 3331.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': 29.0, 'int2': 6.9238, 'pct_remaining30m': 100.0, 'gasprice': 3.4, 'pct_mined_5m': 0.0, 'total_seen_5m': 27.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 307.0, 'hashpower_accepting2': 11.5670144462, 'pct_remaining5m': 100.0, 'sum': 6.1521, 'tx_atabove': 2926.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 3.7, 'pct_mined_5m': 0.0, 'total_seen_5m': 1.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 1399.0, 'hashpower_accepting2': 11.577046549, 'pct_remaining5m': 100.0, 'sum': 6.1395, 'tx_atabove': 2905.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 3.9, 'pct_mined_5m': 0.0, 'total_seen_5m': 1.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 1005.0, 'hashpower_accepting2': 11.5971107544, 'pct_remaining5m': 88.0, 'sum': 6.1035, 'tx_atabove': 2845.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': 9.0, 'int2': 6.9238, 'pct_remaining30m': 88.0, 'gasprice': 4.0, 'pct_mined_5m': 0.0, 'total_seen_5m': 9.0, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 1546.0, 'hashpower_accepting2': 11.6171749599, 'pct_remaining5m': null, 'sum': 5.6151, 'tx_atabove': 2031.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 100.0, 'gasprice': 4.1, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 0.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 1065.0, 'hashpower_accepting2': 11.6171749599, 'pct_remaining5m': 100.0, 'sum': 5.5509, 'tx_atabove': 1924.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 4.3, 'pct_mined_5m': 0.0, 'total_seen_5m': 2.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 459.0, 'hashpower_accepting2': 11.6171749599, 'pct_remaining5m': 50.0, 'sum': 5.5137, 'tx_atabove': 1862.0, 'hashpower_accepting': 16.6666666667, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 4.4, 'pct_mined_5m': 0.0, 'total_seen_5m': 2.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 250.99, 'avgdiff': 0, 'expectedWait': 1000.0, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 298.0, 'hashpower_accepting2': 11.6171749599, 'pct_remaining5m': null, 'sum': 5.4903, 'tx_atabove': 1823.0, 'hashpower_accepting': 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'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0871510456, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 94.4723113965, 'pct_remaining5m': null, 'sum': 0.7358, 'tx_atabove': 17.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 2.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 54.0, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0871510456, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 94.4823434992, 'pct_remaining5m': null, 'sum': 0.7346, 'tx_atabove': 15.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 56.0, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0846479665, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 0.0, 'hashpower_accepting2': 95.0140449438, 'pct_remaining5m': 0.0, 'sum': 0.7346, 'tx_atabove': 15.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 27.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 60.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 17.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0846479665, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 0.0, 'hashpower_accepting2': 95.6059390048, 'pct_remaining5m': 0.0, 'sum': 0.7334, 'tx_atabove': 13.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 28.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 61.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 14.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0821478893, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 96.8699839486, 'pct_remaining5m': 0.0, 'sum': 0.7322, 'tx_atabove': 11.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 21.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 63.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 25.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0796508104, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 1.0, 'hashpower_accepting2': 98.3948635634, 'pct_remaining5m': 0.0, 'sum': 0.7298, 'tx_atabove': 7.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 83.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 64.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 38.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0746656331, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.4149277689, 'pct_remaining5m': 0.0, 'sum': 0.728, 'tx_atabove': 4.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 65.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 2.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0709345939, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.4951845907, 'pct_remaining5m': 0.0, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 3.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 66.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 3.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.5052166934, 'pct_remaining5m': null, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 69.0, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.5152487961, 'pct_remaining5m': null, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 70.0, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.5553772071, 'pct_remaining5m': 0.0, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 72.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 2.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.5754414125, 'pct_remaining5m': 0.0, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 73.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.5854735152, 'pct_remaining5m': 0.0, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 77.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.6055377207, 'pct_remaining5m': null, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 79.0, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.8663723917, 'pct_remaining5m': 0.0, 'sum': 0.7274, 'tx_atabove': 3.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 14.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 80.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 6.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0696924058, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.8864365971, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 84.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.9466292135, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 88.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 98.9566613162, 'pct_remaining5m': null, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 90.0, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.0469502408, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 4.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 91.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 3.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.1272070626, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 3.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 96.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 2.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.1372391653, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 97.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.1472712681, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 99.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.7090690209, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 23.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 100.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 22.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.8394863563, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 7.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 101.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.9097110754, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 2.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 120.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.9297752809, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': null, 'int2': 6.9238, 'pct_remaining30m': null, 'gasprice': 134.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 2.0, 'pct_mined_30m': null, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': 0.0, 'hashpower_accepting2': 99.9498394864, 'pct_remaining5m': 0.0, 'sum': 0.7268, 'tx_atabove': 2.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 137.0, 'pct_mined_5m': 100.0, 'total_seen_5m': 1.0, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0684509628, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}, {'intercept': 4.8015, 'age': null, 'hashpower_accepting2': 99.9699036918, 'pct_remaining5m': null, 'sum': 0.7256, 'tx_atabove': 0.0, 'hashpower_accepting': 100.0, 'hpa_coef2': -0.067, 'total_seen_30m': 1.0, 'int2': 6.9238, 'pct_remaining30m': 0.0, 'gasprice': 180.0, 'pct_mined_5m': null, 'total_seen_5m': null, 'pct_mined_30m': 100.0, 'tx_atabove_coef': 0.0006, 'average': 600, 'safelow': 600, 'nomine': 550, 'expectedTime': 0.52, 'avgdiff': 1, 'expectedWait': 2.0659703104, 'avgdiff_coef': -1.6459, 'hpa_coef': -0.0243}]),
+  gasExpress: JSON.stringify({'safeLow': 2.0, 'standard': 3.0, 'fast': 10.0, 'fastest': 52.0, 'block_time': 15, 'blockNum': 6693030}),
 }
diff --git a/test/e2e/beta/metamask-beta-ui.spec.js b/test/e2e/beta/metamask-beta-ui.spec.js
index d8f442fb1..c5b7f40e4 100644
--- a/test/e2e/beta/metamask-beta-ui.spec.js
+++ b/test/e2e/beta/metamask-beta-ui.spec.js
@@ -74,7 +74,9 @@ describe('MetaMask', function () {
       'if (args[0] === "https://ethgasstation.info/json/ethgasAPI.json") { return ' +
       'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.ethGasBasic + '\')) }); } else if ' +
       '(args[0] === "https://ethgasstation.info/json/predictTable.json") { return ' +
-      'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.ethGasPredictTable + '\')) }); } ' +
+      'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.ethGasPredictTable + '\')) }); } else if ' +
+      '(args[0] === "https://dev.blockscale.net/api/gasexpress.json") { return ' +
+      'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.gasExpress + '\')) }); } ' +
       'return window.fetch(...args); }'
     )
   })
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js
index a804f7b64..b5b13c849 100644
--- a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js
+++ b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js
@@ -12,10 +12,13 @@ export default class GasModalPageContainer extends Component {
 
   static propTypes = {
     hideModal: PropTypes.func,
+    hideBasic: PropTypes.bool,
     updateCustomGasPrice: PropTypes.func,
     updateCustomGasLimit: PropTypes.func,
     customGasPrice: PropTypes.number,
     customGasLimit: PropTypes.number,
+    fetchBasicGasAndTimeEstimates: PropTypes.func,
+    fetchGasEstimates: PropTypes.func,
     gasPriceButtonGroupProps: PropTypes.object,
     infoRowProps: PropTypes.shape({
       originalTotalFiat: PropTypes.string,
@@ -28,10 +31,26 @@ export default class GasModalPageContainer extends Component {
     customModalGasLimitInHex: PropTypes.string,
     cancelAndClose: PropTypes.func,
     transactionFee: PropTypes.string,
+    blockTime: PropTypes.oneOfType([
+      PropTypes.string,
+      PropTypes.number,
+    ]),
   }
 
   state = {}
 
+  componentDidMount () {
+    const promise = this.props.hideBasic
+      ? Promise.resolve(this.props.blockTime)
+      : this.props.fetchBasicGasAndTimeEstimates()
+          .then(basicEstimates => basicEstimates.blockTime)
+
+    promise
+      .then(blockTime => {
+        this.props.fetchGasEstimates(blockTime)
+      })
+  }
+
   renderBasicTabContent (gasPriceButtonGroupProps) {
     return (
       <BasicTabContent
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js
index c3b7a5960..770493be0 100644
--- a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js
+++ b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js
@@ -13,6 +13,8 @@ import {
   setCustomGasLimit,
   resetCustomData,
   setCustomTimeEstimate,
+  fetchGasEstimates,
+  fetchBasicGasAndTimeEstimates,
 } from '../../../ducks/gas.duck'
 import {
   hideGasButtonGroup,
@@ -28,7 +30,7 @@ import {
 } from '../../../selectors.js'
 import {
   formatTimeEstimate,
-  getAveragePriceEstimateInHexWEI,
+  getFastPriceEstimateInHexWEI,
   getBasicGasEstimateLoadingStatus,
   getCustomGasLimit,
   getCustomGasPrice,
@@ -36,6 +38,7 @@ import {
   getEstimatedGasPrices,
   getEstimatedGasTimes,
   getRenderableBasicEstimateData,
+  getBasicGasEstimateBlockTime,
 } from '../../../selectors/custom-gas'
 import {
   submittedPendingTransactionsSelector,
@@ -100,6 +103,7 @@ const mapStateToProps = (state, ownProps) => {
     customGasLimit: calcCustomGasLimit(customModalGasLimitInHex),
     newTotalFiat,
     currentTimeEstimate: getRenderableTimeEstimate(customGasPrice, gasPrices, estimatedTimes),
+    blockTime: getBasicGasEstimateBlockTime(state),
     gasPriceButtonGroupProps: {
       buttonDataLoading,
       defaultActiveButtonIndex: getDefaultActiveButtonIndex(gasButtonInfo, customModalGasPriceInHex),
@@ -150,6 +154,8 @@ const mapDispatchToProps = dispatch => {
     hideGasButtonGroup: () => dispatch(hideGasButtonGroup()),
     setCustomTimeEstimate: (timeEstimateInSeconds) => dispatch(setCustomTimeEstimate(timeEstimateInSeconds)),
     hideSidebar: () => dispatch(hideSidebar()),
+    fetchGasEstimates: (blockTime) => dispatch(fetchGasEstimates(blockTime)),
+    fetchBasicGasAndTimeEstimates: () => dispatch(fetchBasicGasAndTimeEstimates()),
   }
 }
 
@@ -209,7 +215,7 @@ function getTxParams (state, transactionId) {
   return txData.txParams || pendingTxParams || {
     from: send.from,
     gas: send.gasLimit,
-    gasPrice: send.gasPrice || getAveragePriceEstimateInHexWEI(state),
+    gasPrice: send.gasPrice || getFastPriceEstimateInHexWEI(state, true),
     to: send.to,
     value: getSelectedToken(state) ? '0x0' : send.amount,
   }
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-component.test.js b/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-component.test.js
index 16f4b8cd7..22f2f02dd 100644
--- a/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-component.test.js
+++ b/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-component.test.js
@@ -3,14 +3,21 @@ import assert from 'assert'
 import shallow from '../../../../../lib/shallow-with-context'
 import sinon from 'sinon'
 import GasModalPageContainer from '../gas-modal-page-container.component.js'
+import timeout from '../../../../../lib/test-timeout'
 
 import PageContainer from '../../../page-container'
 
 import { Tab } from '../../../tabs'
 
+const mockBasicGasEstimates = {
+  blockTime: 'mockBlockTime',
+}
+
 const propsMethodSpies = {
   cancelAndClose: sinon.spy(),
   onSubmit: sinon.spy(),
+  fetchBasicGasAndTimeEstimates: sinon.stub().returns(Promise.resolve(mockBasicGasEstimates)),
+  fetchGasEstimates: sinon.spy(),
 }
 
 const mockGasPriceButtonGroupProps = {
@@ -59,6 +66,8 @@ describe('GasModalPageContainer Component', function () {
     wrapper = shallow(<GasModalPageContainer
       cancelAndClose={propsMethodSpies.cancelAndClose}
       onSubmit={propsMethodSpies.onSubmit}
+      fetchBasicGasAndTimeEstimates={propsMethodSpies.fetchBasicGasAndTimeEstimates}
+      fetchGasEstimates={propsMethodSpies.fetchGasEstimates}
       updateCustomGasPrice={() => 'mockupdateCustomGasPrice'}
       updateCustomGasLimit={() => 'mockupdateCustomGasLimit'}
       customGasPrice={21}
@@ -76,6 +85,24 @@ describe('GasModalPageContainer Component', function () {
     propsMethodSpies.cancelAndClose.resetHistory()
   })
 
+  describe('componentDidMount', () => {
+    it('should call props.fetchBasicGasAndTimeEstimates', () => {
+      propsMethodSpies.fetchBasicGasAndTimeEstimates.resetHistory()
+      assert.equal(propsMethodSpies.fetchBasicGasAndTimeEstimates.callCount, 0)
+      wrapper.instance().componentDidMount()
+      assert.equal(propsMethodSpies.fetchBasicGasAndTimeEstimates.callCount, 1)
+    })
+
+    it('should call props.fetchGasEstimates with the block time returned by fetchBasicGasAndTimeEstimates', async () => {
+      propsMethodSpies.fetchGasEstimates.resetHistory()
+      assert.equal(propsMethodSpies.fetchGasEstimates.callCount, 0)
+      wrapper.instance().componentDidMount()
+      await timeout(250)
+      assert.equal(propsMethodSpies.fetchGasEstimates.callCount, 1)
+      assert.equal(propsMethodSpies.fetchGasEstimates.getCall(0).args[0], 'mockBlockTime')
+    })
+  })
+
   describe('render', () => {
     it('should render a PageContainer compenent', () => {
       assert.equal(wrapper.find(PageContainer).length, 1)
@@ -106,7 +133,10 @@ describe('GasModalPageContainer Component', function () {
 
     it('should pass the correct renderTabs property to PageContainer', () => {
       sinon.stub(GP, 'renderTabs').returns('mockTabs')
-      const renderTabsWrapperTester = shallow(<GasModalPageContainer />, { context: { t: (str1, str2) => str2 ? str1 + str2 : str1 } })
+      const renderTabsWrapperTester = shallow(<GasModalPageContainer
+        fetchBasicGasAndTimeEstimates={propsMethodSpies.fetchBasicGasAndTimeEstimates}
+        fetchGasEstimates={propsMethodSpies.fetchGasEstimates}
+      />, { context: { t: (str1, str2) => str2 ? str1 + str2 : str1 } })
       const { tabsComponent } = renderTabsWrapperTester.find(PageContainer).props()
       assert.equal(tabsComponent, 'mockTabs')
       GasModalPageContainer.prototype.renderTabs.restore()
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-container.test.js b/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-container.test.js
index 1ed28f33e..ba2cfe282 100644
--- a/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-container.test.js
+++ b/ui/app/components/gas-customization/gas-modal-page-container/tests/gas-modal-page-container-container.test.js
@@ -73,6 +73,9 @@ describe('gas-modal-page-container container', () => {
           conversionRate: 50,
         },
         gas: {
+          basicEstimates: {
+            blockTime: 12,
+          },
           customData: {
             limit: 'aaaaaaaa',
             price: 'ffffffff',
@@ -100,6 +103,7 @@ describe('gas-modal-page-container container', () => {
         customGasLimit: 2863311530,
         currentTimeEstimate: '~1 min 11 sec',
         newTotalFiat: '637.41',
+        blockTime: 12,
         customModalGasLimitInHex: 'aaaaaaaa',
         customModalGasPriceInHex: 'ffffffff',
         gasChartProps: {
diff --git a/ui/app/components/pages/confirm-transaction/confirm-transaction.component.js b/ui/app/components/pages/confirm-transaction/confirm-transaction.component.js
index 7a3b58ffa..2e460f377 100644
--- a/ui/app/components/pages/confirm-transaction/confirm-transaction.component.js
+++ b/ui/app/components/pages/confirm-transaction/confirm-transaction.component.js
@@ -32,7 +32,7 @@ export default class ConfirmTransaction extends Component {
     setTransactionToConfirm: PropTypes.func,
     confirmTransaction: PropTypes.object,
     clearConfirmTransaction: PropTypes.func,
-    fetchBasicGasEstimates: PropTypes.func,
+    fetchBasicGasAndTimeEstimates: PropTypes.func,
   }
 
   getParamsTransactionId () {
@@ -46,7 +46,7 @@ export default class ConfirmTransaction extends Component {
       send = {},
       history,
       confirmTransaction: { txData: { id: transactionId } = {} },
-      fetchBasicGasEstimates,
+      fetchBasicGasAndTimeEstimates,
     } = this.props
 
     if (!totalUnapprovedCount && !send.to) {
@@ -55,7 +55,7 @@ export default class ConfirmTransaction extends Component {
     }
 
     if (!transactionId) {
-      fetchBasicGasEstimates()
+      fetchBasicGasAndTimeEstimates()
       this.setTransactionToConfirm()
     }
   }
diff --git a/ui/app/components/pages/confirm-transaction/confirm-transaction.container.js b/ui/app/components/pages/confirm-transaction/confirm-transaction.container.js
index a7e6966af..46342dc76 100644
--- a/ui/app/components/pages/confirm-transaction/confirm-transaction.container.js
+++ b/ui/app/components/pages/confirm-transaction/confirm-transaction.container.js
@@ -6,7 +6,7 @@ import {
   clearConfirmTransaction,
 } from '../../../ducks/confirm-transaction.duck'
 import {
-  fetchBasicGasEstimates,
+  fetchBasicGasAndTimeEstimates,
 } from '../../../ducks/gas.duck'
 import ConfirmTransaction from './confirm-transaction.component'
 import { getTotalUnapprovedCount } from '../../../selectors'
@@ -27,7 +27,7 @@ const mapDispatchToProps = dispatch => {
   return {
     setTransactionToConfirm: transactionId => dispatch(setTransactionToConfirm(transactionId)),
     clearConfirmTransaction: () => dispatch(clearConfirmTransaction()),
-    fetchBasicGasEstimates: () => dispatch(fetchBasicGasEstimates()),
+    fetchBasicGasAndTimeEstimates: () => dispatch(fetchBasicGasAndTimeEstimates()),
   }
 }
 
diff --git a/ui/app/components/send/send-content/send-gas-row/send-gas-row.container.js b/ui/app/components/send/send-content/send-gas-row/send-gas-row.container.js
index 39266e590..977f8ab3c 100644
--- a/ui/app/components/send/send-content/send-gas-row/send-gas-row.container.js
+++ b/ui/app/components/send/send-content/send-gas-row/send-gas-row.container.js
@@ -7,7 +7,7 @@ import {
 } from '../../send.selectors.js'
 import {
   getBasicGasEstimateLoadingStatus,
-  getRenderableEstimateDataForSmallButtons,
+  getRenderableEstimateDataForSmallButtonsFromGWEI,
   getDefaultActiveButtonIndex,
 } from '../../../../selectors/custom-gas'
 import {
@@ -23,7 +23,7 @@ import SendGasRow from './send-gas-row.component'
 export default connect(mapStateToProps, mapDispatchToProps, mergeProps)(SendGasRow)
 
 function mapStateToProps (state) {
-  const gasButtonInfo = getRenderableEstimateDataForSmallButtons(state)
+  const gasButtonInfo = getRenderableEstimateDataForSmallButtonsFromGWEI(state)
   const activeButtonIndex = getDefaultActiveButtonIndex(gasButtonInfo, getGasPrice(state))
 
   return {
diff --git a/ui/app/components/send/send-content/send-gas-row/tests/send-gas-row-container.test.js b/ui/app/components/send/send-content/send-gas-row/tests/send-gas-row-container.test.js
index 766bf6cab..f0c82e4f7 100644
--- a/ui/app/components/send/send-content/send-gas-row/tests/send-gas-row-container.test.js
+++ b/ui/app/components/send/send-content/send-gas-row/tests/send-gas-row-container.test.js
@@ -42,7 +42,7 @@ proxyquire('../send-gas-row.container.js', {
   '../../../../actions': actionSpies,
   '../../../../selectors/custom-gas': {
     getBasicGasEstimateLoadingStatus: (s) => `mockBasicGasEstimateLoadingStatus:${s}`,
-    getRenderableEstimateDataForSmallButtons: (s) => `mockGasButtonInfo:${s}`,
+    getRenderableEstimateDataForSmallButtonsFromGWEI: (s) => `mockGasButtonInfo:${s}`,
     getDefaultActiveButtonIndex: (gasButtonInfo, gasPrice) => gasButtonInfo.length + gasPrice.length,
   },
   '../../../../ducks/send.duck': sendDuckSpies,
diff --git a/ui/app/components/send/send.component.js b/ui/app/components/send/send.component.js
index 301acb1db..9b512aaf6 100644
--- a/ui/app/components/send/send.component.js
+++ b/ui/app/components/send/send.component.js
@@ -35,6 +35,7 @@ export default class SendTransactionScreen extends PersistentForm {
     selectedToken: PropTypes.object,
     tokenBalance: PropTypes.string,
     tokenContract: PropTypes.object,
+    fetchBasicGasEstimates: PropTypes.func,
     updateAndSetGasTotal: PropTypes.func,
     updateSendErrors: PropTypes.func,
     updateSendTokenBalance: PropTypes.func,
@@ -164,9 +165,8 @@ export default class SendTransactionScreen extends PersistentForm {
 
   componentDidMount () {
     this.props.fetchBasicGasEstimates()
-    .then(basicEstimates => {
+    .then(() => {
       this.updateGas()
-      this.props.fetchGasEstimates(basicEstimates.blockTime)
     })
   }
 
diff --git a/ui/app/components/send/send.container.js b/ui/app/components/send/send.container.js
index ac804cf2a..402e4bbe5 100644
--- a/ui/app/components/send/send.container.js
+++ b/ui/app/components/send/send.container.js
@@ -38,7 +38,6 @@ import {
 } from '../../ducks/send.duck'
 import {
   fetchBasicGasEstimates,
-  fetchGasEstimates,
 } from '../../ducks/gas.duck'
 import {
   calcGasTotal,
@@ -109,6 +108,5 @@ function mapDispatchToProps (dispatch) {
     qrCodeDetected: (data) => dispatch(qrCodeDetected(data)),
     updateSendTo: (to, nickname) => dispatch(updateSendTo(to, nickname)),
     fetchBasicGasEstimates: () => dispatch(fetchBasicGasEstimates()),
-    fetchGasEstimates: (blockTime) => dispatch(fetchGasEstimates(blockTime)),
   }
 }
diff --git a/ui/app/components/send/send.selectors.js b/ui/app/components/send/send.selectors.js
index 71eb93d61..443c82af5 100644
--- a/ui/app/components/send/send.selectors.js
+++ b/ui/app/components/send/send.selectors.js
@@ -11,7 +11,7 @@ const {
   calcGasTotal,
 } = require('./send.utils')
 import {
-  getAveragePriceEstimateInHexWEI,
+  getFastPriceEstimateInHexWEI,
 } from '../../selectors/custom-gas'
 
 const selectors = {
@@ -139,7 +139,7 @@ function getGasLimit (state) {
 }
 
 function getGasPrice (state) {
-  return state.metamask.send.gasPrice || getAveragePriceEstimateInHexWEI(state)
+  return state.metamask.send.gasPrice || getFastPriceEstimateInHexWEI(state)
 }
 
 function getGasPriceFromRecentBlocks (state) {
diff --git a/ui/app/components/send/tests/send-component.test.js b/ui/app/components/send/tests/send-component.test.js
index 68d2fc47e..81955cc1d 100644
--- a/ui/app/components/send/tests/send-component.test.js
+++ b/ui/app/components/send/tests/send-component.test.js
@@ -3,17 +3,12 @@ import assert from 'assert'
 import proxyquire from 'proxyquire'
 import { shallow } from 'enzyme'
 import sinon from 'sinon'
+import timeout from '../../../../lib/test-timeout'
 
 import SendHeader from '../send-header/send-header.container'
 import SendContent from '../send-content/send-content.component'
 import SendFooter from '../send-footer/send-footer.container'
 
-function timeout (time) {
-  return new Promise((resolve, reject) => {
-    setTimeout(resolve, time || 1500)
-  })
-}
-
 const mockBasicGasEstimates = {
   blockTime: 'mockBlockTime',
 }
@@ -88,7 +83,7 @@ describe('Send Component', function () {
   })
 
   describe('componentDidMount', () => {
-    it('should call props.fetchBasicGasEstimates', () => {
+    it('should call props.fetchBasicGasAndTimeEstimates', () => {
       propsMethodSpies.fetchBasicGasEstimates.resetHistory()
       assert.equal(propsMethodSpies.fetchBasicGasEstimates.callCount, 0)
       wrapper.instance().componentDidMount()
@@ -103,15 +98,6 @@ describe('Send Component', function () {
       await timeout(250)
       assert.equal(SendTransactionScreen.prototype.updateGas.callCount, 1)
     })
-
-    it('should call props.fetchGasEstimates with the block time returned by fetchBasicGasEstimates', async () => {
-      propsMethodSpies.fetchGasEstimates.resetHistory()
-      assert.equal(propsMethodSpies.fetchGasEstimates.callCount, 0)
-      wrapper.instance().componentDidMount()
-      await timeout(250)
-      assert.equal(propsMethodSpies.fetchGasEstimates.callCount, 1)
-      assert.equal(propsMethodSpies.fetchGasEstimates.getCall(0).args[0], 'mockBlockTime')
-    })
   })
 
   describe('componentWillUnmount', () => {
diff --git a/ui/app/components/transaction-list-item/transaction-list-item.component.js b/ui/app/components/transaction-list-item/transaction-list-item.component.js
index d34dba210..5334484db 100644
--- a/ui/app/components/transaction-list-item/transaction-list-item.component.js
+++ b/ui/app/components/transaction-list-item/transaction-list-item.component.js
@@ -27,7 +27,7 @@ export default class TransactionListItem extends PureComponent {
     tokenData: PropTypes.object,
     transaction: PropTypes.object,
     value: PropTypes.string,
-    fetchBasicGasEstimates: PropTypes.func,
+    fetchBasicGasAndTimeEstimates: PropTypes.func,
     fetchGasEstimates: PropTypes.func,
   }
 
@@ -71,8 +71,8 @@ export default class TransactionListItem extends PureComponent {
   }
 
   resubmit () {
-    const { transaction, retryTransaction, fetchBasicGasEstimates, fetchGasEstimates } = this.props
-    fetchBasicGasEstimates().then(basicEstimates => {
+    const { transaction, retryTransaction, fetchBasicGasAndTimeEstimates, fetchGasEstimates } = this.props
+    fetchBasicGasAndTimeEstimates().then(basicEstimates => {
       fetchGasEstimates(basicEstimates.blockTime)
     }).then(() => {
       retryTransaction(transaction)
diff --git a/ui/app/components/transaction-list-item/transaction-list-item.container.js b/ui/app/components/transaction-list-item/transaction-list-item.container.js
index df408b36b..61ecb04d0 100644
--- a/ui/app/components/transaction-list-item/transaction-list-item.container.js
+++ b/ui/app/components/transaction-list-item/transaction-list-item.container.js
@@ -8,7 +8,7 @@ import { hexToDecimal } from '../../helpers/conversions.util'
 import { getTokenData } from '../../helpers/transactions.util'
 import { formatDate } from '../../util'
 import {
-  fetchBasicGasEstimates,
+  fetchBasicGasAndTimeEstimates,
   fetchGasEstimates,
   setCustomGasPrice,
   setCustomGasLimit,
@@ -29,7 +29,7 @@ const mapStateToProps = (state, ownProps) => {
 
 const mapDispatchToProps = dispatch => {
   return {
-    fetchBasicGasEstimates: () => dispatch(fetchBasicGasEstimates()),
+    fetchBasicGasAndTimeEstimates: () => dispatch(fetchBasicGasAndTimeEstimates()),
     fetchGasEstimates: (blockTime) => dispatch(fetchGasEstimates(blockTime)),
     setSelectedToken: tokenAddress => dispatch(setSelectedToken(tokenAddress)),
     retryTransaction: (transaction) => {
diff --git a/ui/app/ducks/gas.duck.js b/ui/app/ducks/gas.duck.js
index 6ae927b12..ffd1e773f 100644
--- a/ui/app/ducks/gas.duck.js
+++ b/ui/app/ducks/gas.duck.js
@@ -19,6 +19,7 @@ const SET_CUSTOM_GAS_PRICE = 'metamask/gas/SET_CUSTOM_GAS_PRICE'
 const SET_CUSTOM_GAS_TOTAL = 'metamask/gas/SET_CUSTOM_GAS_TOTAL'
 const SET_PRICE_AND_TIME_ESTIMATES = 'metamask/gas/SET_PRICE_AND_TIME_ESTIMATES'
 const SET_API_ESTIMATES_LAST_RETRIEVED = 'metamask/gas/SET_API_ESTIMATES_LAST_RETRIEVED'
+const SET_BASIC_API_ESTIMATES_LAST_RETRIEVED = 'metamask/gas/SET_BASIC_API_ESTIMATES_LAST_RETRIEVED'
 
 // TODO: determine if this approach to initState is consistent with conventional ducks pattern
 const initState = {
@@ -42,7 +43,9 @@ const initState = {
   basicEstimateIsLoading: true,
   gasEstimatesLoading: true,
   priceAndTimeEstimates: [],
+  basicPriceAndTimeEstimates: [],
   priceAndTimeEstimatesLastRetrieved: 0,
+  basicPriceAndTimeEstimatesLastRetrieved: 0,
   errors: {},
 }
 
@@ -118,6 +121,11 @@ export default function reducer ({ gas: gasState = initState }, action = {}) {
         ...newState,
         priceAndTimeEstimatesLastRetrieved: action.value,
       }
+    case SET_BASIC_API_ESTIMATES_LAST_RETRIEVED:
+      return {
+        ...newState,
+        basicPriceAndTimeEstimatesLastRetrieved: action.value,
+      }
     case RESET_CUSTOM_DATA:
       return {
         ...newState,
@@ -159,9 +167,9 @@ export function fetchBasicGasEstimates () {
   return (dispatch) => {
     dispatch(basicGasEstimatesLoadingStarted())
 
-    return fetch('https://ethgasstation.info/json/ethgasAPI.json', {
+    return fetch('https://dev.blockscale.net/api/gasexpress.json', {
       'headers': {},
-      'referrer': 'http://ethgasstation.info/json/',
+      'referrer': 'https://dev.blockscale.net/api/',
       'referrerPolicy': 'no-referrer-when-downgrade',
       'body': null,
       'method': 'GET',
@@ -169,23 +177,53 @@ export function fetchBasicGasEstimates () {
     )
       .then(r => r.json())
       .then(({
-        average,
-        avgWait,
-        block_time: blockTime,
-        blockNum,
+        safeLow,
+        standard: average,
         fast,
         fastest,
-        fastestWait,
-        fastWait,
-        safeLow,
-        safeLowWait,
-        speed,
+        block_time: blockTime,
+        blockNum,
       }) => {
         const basicEstimates = {
+          safeLow,
           average,
-          avgWait,
+          fast,
+          fastest,
           blockTime,
           blockNum,
+        }
+        dispatch(setBasicGasEstimateData(basicEstimates))
+        dispatch(basicGasEstimatesLoadingFinished())
+        return basicEstimates
+      })
+  }
+}
+
+export function fetchBasicGasAndTimeEstimates () {
+  return (dispatch, getState) => {
+    const {
+      basicPriceAndTimeEstimatesLastRetrieved,
+      basicPriceAndTimeEstimates,
+    } = getState().gas
+    const timeLastRetrieved = basicPriceAndTimeEstimatesLastRetrieved || loadLocalStorageData('BASIC_GAS_AND_TIME_API_ESTIMATES_LAST_RETRIEVED') || 0
+
+    dispatch(basicGasEstimatesLoadingStarted())
+
+    const promiseToFetch = Date.now() - timeLastRetrieved > 75000
+      ? fetch('https://ethgasstation.info/json/ethgasAPI.json', {
+        'headers': {},
+        'referrer': 'http://ethgasstation.info/json/',
+        'referrerPolicy': 'no-referrer-when-downgrade',
+        'body': null,
+        'method': 'GET',
+        'mode': 'cors'}
+      )
+        .then(r => r.json())
+        .then(({
+          average,
+          avgWait,
+          block_time: blockTime,
+          blockNum,
           fast,
           fastest,
           fastestWait,
@@ -193,7 +231,34 @@ export function fetchBasicGasEstimates () {
           safeLow,
           safeLowWait,
           speed,
-        }
+        }) => {
+          const basicEstimates = {
+            average,
+            avgWait,
+            blockTime,
+            blockNum,
+            fast,
+            fastest,
+            fastestWait,
+            fastWait,
+            safeLow,
+            safeLowWait,
+            speed,
+          }
+
+          const timeRetrieved = Date.now()
+          dispatch(setBasicApiEstimatesLastRetrieved(timeRetrieved))
+          saveLocalStorageData(timeRetrieved, 'BASIC_GAS_AND_TIME_API_ESTIMATES_LAST_RETRIEVED')
+          saveLocalStorageData(basicEstimates, 'BASIC_GAS_AND_TIME_API_ESTIMATES')
+
+          return basicEstimates
+        })
+      : Promise.resolve(basicPriceAndTimeEstimates.length
+          ? basicPriceAndTimeEstimates
+          : loadLocalStorageData('BASIC_GAS_AND_TIME_API_ESTIMATES')
+        )
+
+      return promiseToFetch.then(basicEstimates => {
         dispatch(setBasicGasEstimateData(basicEstimates))
         dispatch(basicGasEstimatesLoadingFinished())
         return basicEstimates
@@ -301,6 +366,13 @@ export function setApiEstimatesLastRetrieved (retrievalTime) {
   }
 }
 
+export function setBasicApiEstimatesLastRetrieved (retrievalTime) {
+  return {
+    type: SET_BASIC_API_ESTIMATES_LAST_RETRIEVED,
+    value: retrievalTime,
+  }
+}
+
 export function resetCustomGasState () {
   return { type: RESET_CUSTOM_GAS_STATE }
 }
diff --git a/ui/app/ducks/tests/gas-duck.test.js b/ui/app/ducks/tests/gas-duck.test.js
index 009758cde..dff154dea 100644
--- a/ui/app/ducks/tests/gas-duck.test.js
+++ b/ui/app/ducks/tests/gas-duck.test.js
@@ -19,7 +19,7 @@ const {
   setCustomGasTotal,
   setCustomGasErrors,
   resetCustomGasState,
-  fetchBasicGasEstimates,
+  fetchBasicGasAndTimeEstimates,
   gasEstimatesLoadingStarted,
   gasEstimatesLoadingFinished,
   setPricesAndTimeEstimates,
@@ -100,6 +100,9 @@ describe('Gas Duck', () => {
     gasEstimatesLoading: true,
     priceAndTimeEstimates: [],
     priceAndTimeEstimatesLastRetrieved: 0,
+    basicPriceAndTimeEstimates: [],
+    basicPriceAndTimeEstimatesLastRetrieved: 0,
+
 
   }
   const BASIC_GAS_ESTIMATE_LOADING_FINISHED = 'metamask/gas/BASIC_GAS_ESTIMATE_LOADING_FINISHED'
@@ -114,6 +117,7 @@ describe('Gas Duck', () => {
   const SET_CUSTOM_GAS_TOTAL = 'metamask/gas/SET_CUSTOM_GAS_TOTAL'
   const SET_PRICE_AND_TIME_ESTIMATES = 'metamask/gas/SET_PRICE_AND_TIME_ESTIMATES'
   const SET_API_ESTIMATES_LAST_RETRIEVED = 'metamask/gas/SET_API_ESTIMATES_LAST_RETRIEVED'
+  const SET_BASIC_API_ESTIMATES_LAST_RETRIEVED = 'metamask/gas/SET_BASIC_API_ESTIMATES_LAST_RETRIEVED'
 
   describe('GasReducer()', () => {
     it('should initialize state', () => {
@@ -224,7 +228,7 @@ describe('Gas Duck', () => {
       )
     })
 
-    it('should set priceAndTimeEstimatesLastRetrieved when receivinga SET_API_ESTIMATES_LAST_RETRIEVED action', () => {
+    it('should set priceAndTimeEstimatesLastRetrieved when receiving a SET_API_ESTIMATES_LAST_RETRIEVED action', () => {
       assert.deepEqual(
         GasReducer(mockState, {
           type: SET_API_ESTIMATES_LAST_RETRIEVED,
@@ -234,6 +238,16 @@ describe('Gas Duck', () => {
       )
     })
 
+    it('should set priceAndTimeEstimatesLastRetrieved when receiving a SET_BASIC_API_ESTIMATES_LAST_RETRIEVED action', () => {
+      assert.deepEqual(
+        GasReducer(mockState, {
+          type: SET_BASIC_API_ESTIMATES_LAST_RETRIEVED,
+          value: 1700000000000,
+        }),
+        Object.assign({ basicPriceAndTimeEstimatesLastRetrieved: 1700000000000 }, mockState.gas)
+      )
+    })
+
     it('should set errors when receiving a SET_CUSTOM_GAS_ERRORS action', () => {
       assert.deepEqual(
         GasReducer(mockState, {
@@ -272,10 +286,14 @@ describe('Gas Duck', () => {
     })
   })
 
-  describe('fetchBasicGasEstimates', () => {
+  describe('fetchBasicGasAndTimeEstimates', () => {
     const mockDistpatch = sinon.spy()
     it('should call fetch with the expected params', async () => {
-      await fetchBasicGasEstimates()(mockDistpatch)
+      await fetchBasicGasAndTimeEstimates()(mockDistpatch, () => ({ gas: Object.assign(
+        {},
+        initState,
+        { basicPriceAndTimeEstimatesLastRetrieved: 1000000 }
+      ) }))
       assert.deepEqual(
         mockDistpatch.getCall(0).args,
         [{ type: BASIC_GAS_ESTIMATE_LOADING_STARTED} ]
@@ -294,8 +312,14 @@ describe('Gas Duck', () => {
           },
         ]
       )
+
       assert.deepEqual(
         mockDistpatch.getCall(1).args,
+        [{ type: SET_BASIC_API_ESTIMATES_LAST_RETRIEVED, value: 2000000 } ]
+      )
+
+      assert.deepEqual(
+        mockDistpatch.getCall(2).args,
         [{
           type: SET_BASIC_GAS_ESTIMATE_DATA,
           value: {
@@ -314,7 +338,7 @@ describe('Gas Duck', () => {
         }]
       )
       assert.deepEqual(
-        mockDistpatch.getCall(2).args,
+        mockDistpatch.getCall(3).args,
         [{ type: BASIC_GAS_ESTIMATE_LOADING_FINISHED }]
       )
     })
diff --git a/ui/app/selectors/custom-gas.js b/ui/app/selectors/custom-gas.js
index 1c577c1b4..f06fb710d 100644
--- a/ui/app/selectors/custom-gas.js
+++ b/ui/app/selectors/custom-gas.js
@@ -23,7 +23,9 @@ import { addHexPrefix } from 'ethereumjs-util'
 const selectors = {
   formatTimeEstimate,
   getAveragePriceEstimateInHexWEI,
+  getFastPriceEstimateInHexWEI,
   getBasicGasEstimateLoadingStatus,
+  getBasicGasEstimateBlockTime,
   getCustomGasErrors,
   getCustomGasLimit,
   getCustomGasPrice,
@@ -33,7 +35,7 @@ const selectors = {
   getEstimatedGasTimes,
   getPriceAndTimeEstimates,
   getRenderableBasicEstimateData,
-  getRenderableEstimateDataForSmallButtons,
+  getRenderableEstimateDataForSmallButtonsFromGWEI,
   priceEstimateToWei,
 }
 
@@ -78,12 +80,21 @@ function getAveragePriceEstimateInHexWEI (state) {
   return getGasPriceInHexWei(averagePriceEstimate || '0x0')
 }
 
+function getFastPriceEstimateInHexWEI (state, convertFromDecGWEI) {
+  const fastPriceEstimate = state.gas.basicEstimates.fast
+  return getGasPriceInHexWei(fastPriceEstimate || '0x0', convertFromDecGWEI)
+}
+
 function getDefaultActiveButtonIndex (gasButtonInfo, customGasPriceInHex, gasPrice) {
   return gasButtonInfo.findIndex(({ priceInHexWei }) => {
     return priceInHexWei === addHexPrefix(customGasPriceInHex || gasPrice)
   })
 }
 
+function getBasicGasEstimateBlockTime (state) {
+  return state.gas.basicEstimates.blockTime
+}
+
 function apiEstimateModifiedToGWEI (estimate) {
   return multiplyCurrencies(estimate, 0.10, {
     toNumericBase: 'hex',
@@ -102,26 +113,34 @@ function basicPriceEstimateToETHTotal (estimate, gasLimit, numberOfDecimals = 9)
   })
 }
 
-function getRenderableEthFee (estimate, gasLimit, numberOfDecimals = 9) {
+function getRenderableEthFee (estimate, gasLimit, numberOfDecimals = 9, convertFromDecGWEI) {
+  const initialConversion = convertFromDecGWEI
+    ? x => conversionUtil(x, { fromNumericBase: 'dec', toNumericBase: 'hex' })
+    : apiEstimateModifiedToGWEI
+
   return pipe(
-    apiEstimateModifiedToGWEI,
+    initialConversion,
     partialRight(basicPriceEstimateToETHTotal, [gasLimit, numberOfDecimals]),
     formatETHFee
   )(estimate, gasLimit)
 }
 
 
-function getRenderableConvertedCurrencyFee (estimate, gasLimit, convertedCurrency, conversionRate) {
+function getRenderableConvertedCurrencyFee (estimate, gasLimit, convertedCurrency, conversionRate, convertFromDecGWEI) {
+  const initialConversion = convertFromDecGWEI
+    ? x => conversionUtil(x, { fromNumericBase: 'dec', toNumericBase: 'hex' })
+    : apiEstimateModifiedToGWEI
+
   return pipe(
-    apiEstimateModifiedToGWEI,
+    initialConversion,
     partialRight(basicPriceEstimateToETHTotal, [gasLimit]),
     partialRight(ethTotalToConvertedCurrency, [convertedCurrency, conversionRate]),
     partialRight(formatCurrency, [convertedCurrency])
   )(estimate, gasLimit, convertedCurrency, conversionRate)
 }
 
-function getTimeEstimateInSeconds (blockWaitEstimate, currentBlockTime) {
-  return multiplyCurrencies(blockWaitEstimate, currentBlockTime, {
+function getTimeEstimateInSeconds (blockWaitEstimate) {
+  return multiplyCurrencies(blockWaitEstimate, 60, {
     toNumericBase: 'dec',
     multiplicandBase: 10,
     multiplierBase: 10,
@@ -141,11 +160,11 @@ function formatTimeEstimate (totalSeconds) {
   return formattedCombined
 }
 
-function getRenderableTimeEstimate (blockWaitEstimate, currentBlockTime) {
+function getRenderableTimeEstimate (blockWaitEstimate) {
   return pipe(
     getTimeEstimateInSeconds,
     formatTimeEstimate
-  )(blockWaitEstimate, currentBlockTime)
+  )(blockWaitEstimate)
 }
 
 function priceEstimateToWei (priceEstimate) {
@@ -158,9 +177,13 @@ function priceEstimateToWei (priceEstimate) {
   })
 }
 
-function getGasPriceInHexWei (price) {
+function getGasPriceInHexWei (price, convertFromDecGWEI) {
+  const initialConversion = convertFromDecGWEI
+    ? x => conversionUtil(x, { fromNumericBase: 'dec', toNumericBase: 'hex' })
+    : apiEstimateModifiedToGWEI
+
   return pipe(
-    apiEstimateModifiedToGWEI,
+    initialConversion,
     priceEstimateToWei,
     addHexPrefix
   )(price)
@@ -177,11 +200,10 @@ function getRenderableBasicEstimateData (state) {
     gas: {
       basicEstimates: {
         safeLow,
-        average,
         fast,
-        blockTime,
+        fastest,
         safeLowWait,
-        avgWait,
+        fastestWait,
         fastWait,
       },
     },
@@ -190,29 +212,29 @@ function getRenderableBasicEstimateData (state) {
   return [
     {
       labelKey: 'fastest',
-      feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(fast, gasLimit, currentCurrency, conversionRate),
-      feeInSecondaryCurrency: getRenderableEthFee(fast, gasLimit),
-      timeEstimate: getRenderableTimeEstimate(fastWait, blockTime),
-      priceInHexWei: getGasPriceInHexWei(fast),
+      feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(fastest, gasLimit, currentCurrency, conversionRate),
+      feeInSecondaryCurrency: getRenderableEthFee(fastest, gasLimit),
+      timeEstimate: fastestWait && getRenderableTimeEstimate(fastestWait),
+      priceInHexWei: getGasPriceInHexWei(fastest),
     },
     {
       labelKey: 'fast',
-      feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(average, gasLimit, currentCurrency, conversionRate),
-      feeInSecondaryCurrency: getRenderableEthFee(average, gasLimit),
-      timeEstimate: getRenderableTimeEstimate(avgWait, blockTime),
-      priceInHexWei: getGasPriceInHexWei(average),
+      feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(fast, gasLimit, currentCurrency, conversionRate),
+      feeInSecondaryCurrency: getRenderableEthFee(fast, gasLimit),
+      timeEstimate: fastWait && getRenderableTimeEstimate(fastWait),
+      priceInHexWei: getGasPriceInHexWei(fast),
     },
     {
       labelKey: 'slow',
       feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(safeLow, gasLimit, currentCurrency, conversionRate),
       feeInSecondaryCurrency: getRenderableEthFee(safeLow, gasLimit),
-      timeEstimate: getRenderableTimeEstimate(safeLowWait, blockTime),
+      timeEstimate: safeLowWait && getRenderableTimeEstimate(safeLowWait),
       priceInHexWei: getGasPriceInHexWei(safeLow),
     },
   ]
 }
 
-function getRenderableEstimateDataForSmallButtons (state) {
+function getRenderableEstimateDataForSmallButtonsFromGWEI (state) {
   if (getBasicGasEstimateLoadingStatus(state)) {
     return []
   }
@@ -223,30 +245,30 @@ function getRenderableEstimateDataForSmallButtons (state) {
     gas: {
       basicEstimates: {
         safeLow,
-        average,
         fast,
+        fastest,
       },
     },
   } = state
 
   return [
     {
-      labelKey: 'fast',
-      feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(fast, gasLimit, currentCurrency, conversionRate),
-      feeInPrimaryCurrency: getRenderableEthFee(fast, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS),
-      priceInHexWei: getGasPriceInHexWei(fast),
+      labelKey: 'fastest',
+      feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(fastest, gasLimit, currentCurrency, conversionRate, true),
+      feeInPrimaryCurrency: getRenderableEthFee(fastest, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS, true),
+      priceInHexWei: getGasPriceInHexWei(fastest, true),
     },
     {
-      labelKey: 'average',
-      feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(average, gasLimit, currentCurrency, conversionRate),
-      feeInPrimaryCurrency: getRenderableEthFee(average, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS),
-      priceInHexWei: getGasPriceInHexWei(average),
+      labelKey: 'fast',
+      feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(fast, gasLimit, currentCurrency, conversionRate, true),
+      feeInPrimaryCurrency: getRenderableEthFee(fast, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS, true),
+      priceInHexWei: getGasPriceInHexWei(fast, true),
     },
     {
       labelKey: 'slow',
-      feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(safeLow, gasLimit, currentCurrency, conversionRate),
-      feeInPrimaryCurrency: getRenderableEthFee(safeLow, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS),
-      priceInHexWei: getGasPriceInHexWei(safeLow),
+      feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(safeLow, gasLimit, currentCurrency, conversionRate, true),
+      feeInPrimaryCurrency: getRenderableEthFee(safeLow, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS, true),
+      priceInHexWei: getGasPriceInHexWei(safeLow, true),
     },
   ]
 }
diff --git a/ui/app/selectors/tests/custom-gas.test.js b/ui/app/selectors/tests/custom-gas.test.js
index 8a6e7e351..037b1e86e 100644
--- a/ui/app/selectors/tests/custom-gas.test.js
+++ b/ui/app/selectors/tests/custom-gas.test.js
@@ -10,7 +10,7 @@ const {
   getEstimatedGasTimes,
   getPriceAndTimeEstimates,
   getRenderableBasicEstimateData,
-  getRenderableEstimateDataForSmallButtons,
+  getRenderableEstimateDataForSmallButtonsFromGWEI,
 } = proxyquire('../custom-gas', {})
 
 describe('custom-gas selectors', () => {
@@ -80,21 +80,21 @@ describe('custom-gas selectors', () => {
             labelKey: 'fastest',
             feeInPrimaryCurrency: '$0.05',
             feeInSecondaryCurrency: '0.00021 ETH',
-            timeEstimate: '~7 sec',
+            timeEstimate: '~30 sec',
             priceInHexWei: '0x2540be400',
           },
           {
             labelKey: 'fast',
             feeInPrimaryCurrency: '$0.03',
             feeInSecondaryCurrency: '0.000105 ETH',
-            timeEstimate: '~46 sec',
+            timeEstimate: '~3 min 18 sec',
             priceInHexWei: '0x12a05f200',
           },
           {
             labelKey: 'slow',
             feeInPrimaryCurrency: '$0.01',
             feeInSecondaryCurrency: '0.0000525 ETH',
-            timeEstimate: '~1 min 33 sec',
+            timeEstimate: '~6 min 36 sec',
             priceInHexWei: '0x9502f900',
           },
         ],
@@ -111,10 +111,10 @@ describe('custom-gas selectors', () => {
               blockTime: 14.16326530612245,
               safeLow: 25,
               safeLowWait: 6.6,
-              average: 50,
-              avgWait: 3.3,
-              fast: 100,
-              fastWait: 0.5,
+              fast: 50,
+              fastWait: 3.3,
+              fastest: 100,
+              fastestWait: 0.5,
             },
           },
         },
@@ -125,21 +125,21 @@ describe('custom-gas selectors', () => {
             labelKey: 'fastest',
             feeInPrimaryCurrency: '$1.07',
             feeInSecondaryCurrency: '0.00042 ETH',
-            timeEstimate: '~14 sec',
+            timeEstimate: '~1 min',
             priceInHexWei: '0x4a817c800',
           },
           {
             labelKey: 'fast',
             feeInPrimaryCurrency: '$0.54',
             feeInSecondaryCurrency: '0.00021 ETH',
-            timeEstimate: '~1 min 33 sec',
+            timeEstimate: '~6 min 36 sec',
             priceInHexWei: '0x2540be400',
           },
           {
             labelKey: 'slow',
             feeInPrimaryCurrency: '$0.27',
             feeInSecondaryCurrency: '0.000105 ETH',
-            timeEstimate: '~3 min 7 sec',
+            timeEstimate: '~13 min 12 sec',
             priceInHexWei: '0x12a05f200',
           },
         ],
@@ -156,10 +156,10 @@ describe('custom-gas selectors', () => {
               blockTime: 14.16326530612245,
               safeLow: 50,
               safeLowWait: 13.2,
-              average: 100,
-              avgWait: 6.6,
-              fast: 200,
-              fastWait: 1.0,
+              fast: 100,
+              fastWait: 6.6,
+              fastest: 200,
+              fastestWait: 1.0,
             },
           },
         },
@@ -176,27 +176,27 @@ describe('custom-gas selectors', () => {
 
   })
 
-  describe('getRenderableEstimateDataForSmallButtons()', () => {
+  describe('getRenderableEstimateDataForSmallButtonsFromGWEI()', () => {
     const tests = [
       {
         expectedResult: [
           {
-            feeInSecondaryCurrency: '$0.05',
-            feeInPrimaryCurrency: '0.00021 ETH',
-            labelKey: 'fast',
-            priceInHexWei: '0x2540be400',
+            feeInSecondaryCurrency: '$0.54',
+            feeInPrimaryCurrency: '0.0021 ETH',
+            labelKey: 'fastest',
+            priceInHexWei: '0x174876e800',
           },
           {
-            feeInSecondaryCurrency: '$0.03',
-            feeInPrimaryCurrency: '0.0001 ETH',
-            labelKey: 'average',
-            priceInHexWei: '0x12a05f200',
+            feeInSecondaryCurrency: '$0.27',
+            feeInPrimaryCurrency: '0.00105 ETH',
+            labelKey: 'fast',
+            priceInHexWei: '0xba43b7400',
           },
           {
-            feeInSecondaryCurrency: '$0.01',
-            feeInPrimaryCurrency: '0.00005 ETH',
+            feeInSecondaryCurrency: '$0.13',
+            feeInPrimaryCurrency: '0.00052 ETH',
             labelKey: 'slow',
-            priceInHexWei: '0x9502f900',
+            priceInHexWei: '0x5d21dba00',
           },
         ],
         mockState: {
@@ -212,10 +212,10 @@ describe('custom-gas selectors', () => {
               blockTime: 14.16326530612245,
               safeLow: 25,
               safeLowWait: 6.6,
-              average: 50,
-              avgWait: 3.3,
-              fast: 100,
-              fastWait: 0.5,
+              fast: 50,
+              fastWait: 3.3,
+              fastest: 100,
+              fastestWait: 0.5,
             },
           },
         },
@@ -223,22 +223,22 @@ describe('custom-gas selectors', () => {
       {
         expectedResult: [
           {
-            feeInSecondaryCurrency: '$1.07',
-            feeInPrimaryCurrency: '0.00042 ETH',
-            labelKey: 'fast',
-            priceInHexWei: '0x4a817c800',
+            feeInSecondaryCurrency: '$10.74',
+            feeInPrimaryCurrency: '0.0042 ETH',
+            labelKey: 'fastest',
+            priceInHexWei: '0x2e90edd000',
           },
           {
-            feeInSecondaryCurrency: '$0.54',
-            feeInPrimaryCurrency: '0.00021 ETH',
-            labelKey: 'average',
-            priceInHexWei: '0x2540be400',
+            feeInSecondaryCurrency: '$5.37',
+            feeInPrimaryCurrency: '0.0021 ETH',
+            labelKey: 'fast',
+            priceInHexWei: '0x174876e800',
           },
           {
-            feeInSecondaryCurrency: '$0.27',
-            feeInPrimaryCurrency: '0.0001 ETH',
+            feeInSecondaryCurrency: '$2.68',
+            feeInPrimaryCurrency: '0.00105 ETH',
             labelKey: 'slow',
-            priceInHexWei: '0x12a05f200',
+            priceInHexWei: '0xba43b7400',
           },
         ],
         mockState: {
@@ -254,10 +254,10 @@ describe('custom-gas selectors', () => {
               blockTime: 14.16326530612245,
               safeLow: 50,
               safeLowWait: 13.2,
-              average: 100,
-              avgWait: 6.6,
-              fast: 200,
-              fastWait: 1.0,
+              fast: 100,
+              fastWait: 6.6,
+              fastest: 200,
+              fastestWait: 1.0,
             },
           },
         },
@@ -266,7 +266,7 @@ describe('custom-gas selectors', () => {
     it('should return renderable data about basic estimates appropriate for buttons with less info', () => {
       tests.forEach(test => {
         assert.deepEqual(
-          getRenderableEstimateDataForSmallButtons(test.mockState),
+          getRenderableEstimateDataForSmallButtonsFromGWEI(test.mockState),
           test.expectedResult
         )
       })
diff --git a/ui/lib/test-timeout.js b/ui/lib/test-timeout.js
new file mode 100644
index 000000000..957b0fce2
--- /dev/null
+++ b/ui/lib/test-timeout.js
@@ -0,0 +1,5 @@
+export default function timeout (time) {
+  return new Promise((resolve, reject) => {
+    setTimeout(resolve, time || 1500)
+  })
+}