The principle on which this strategy is based is to wait for an important expansion of the Bollinger Bands which prelude to price reversal (correction or start of a new trend). The reason why the extreme signal was excluded in this version (although it is very profitable) is that it can provide false signals so you have to be expert in this strategy.
Time Frame 5 min or higher best time frame H1 and H4.
Time Frame 5 min or higher best time frame H1 and H4.