all I know is that it executes on the cross signal of the two moving averages.

the fact that it hedges with an opposing position which I bets on closing on the retracement is a hedging strategy. I am also running this in demo and have run numerous strategy tests on various settings. It appears to run as well in the 5m as the 15m TF. I think the key to making this really work is scale/stepping the opposing position with some kind of probability curve. If you put a 2period EMA and a 5period EMA on a chart and watch them cross that's what is driving the signal as I have it configured.

The other factor is the TP. According to my tests the 15TP gives the greatest net profit.