Yeah I think MA crossovers are one of the best in FX because it is super objective and allows you to ride that motha trend. I paid the $2500 and bought Tradingblox to tweak a simple MA crossover system. MM is the buiggest part in these startgies and I found if you use a ATR as for your stop it is the best because you can keep your losses small and and have a relative tight SL compared to your winners. I did forwrd test it too with my broker to see what it would be like trading it and damn you basically have to have a ton of confidence because it can beat the crap out of you until your limbs are busted and you can barely walk, then maybe you get some profit. Or if you want to be grandma and only risk a tiny bit then that works too but will be crap returns too.
All posts are my personal opinion