i never traded 15M, because the time window is very less for equity cash .... got good success with 1:1 reward ratio when trading 5M breakout .. with no directional bias ... always get stopped out on winning trades when trailing ... otherwise ...
if i had a deep pocket .. want to play on bullish stocks and take delivery if intraday fails .... then snowball the next day if still in loss with futures ... increase lot size or trades aggressively till my 1st trade is profitable. do whatever it takes ... BUY / SELL options, futures, cash .. all of the same underlying ....