You concentrated too much on penetrations. Good rules such as full ES or even just ES10 allow you escape from stiffs such as 14, 15, 16 against dealer face cards. Loss rebates help the bottom line, also buy-in match play coupons. My point is if you hate financial fluctuations like me, try finding better games which may have higher physical risk and you need to travel farrer but you may have better hourly rate justifying your scouting time and you will have lower ROR against good rules which means less losing streak.