SMAgain or EMAgain in ProfitTrailer is the strategy using the spread difference between the price and combination of fast MA and slow MA.
Time frame numbers are from popular settings.
If you have positive buy value for gain starategy, it is mostly between the price and slow MA except one or two candle right after cross (sometimes three candles).
If you have negative buy value for gain starategy, it is mostly between the price and fast MA except one or two candle right after cross (sometimes three candles).
This script is to help myself understand the buy strategies of ProfitTrailer.