I have opposite strategy, but based on same principle. Sl biger than TP, ex. SL 150 TP 50, combined with limited Martin type 1, minimal multipli 2x, but limited to 2 -3 times, combined with opposite close, probability to hit TP much greater than SL, but if hit sl or negative profit, it will payback in next order, since use martin order. Based on test, if ratio correct, will have great profitability with decent drawdown. Tricky part is to calculate ratio between, account balance, sl and tp, martin 1 setting, each pair will require different ratio.