Reason for the trading strategy (technically):
GBPUSD tested its at 1.4297 (76.4% , 61.8% , horizontal swing high resistance), where it reversed nicely off it. We expect to see price drop further to its support at 1.4123 (61.8% , 50% ).
(55, 5, 3) reversed nicely off its resistance at 98%. A divergence with price has also been identified which contributes to our bias.