I never found any drug that helped my game, I never have done coke/meth/speed so I dont and will never know about all that. but I play better natural than any other way, I have never had good stamina even when i'm in good shape 5-6 hours is it for me, my brain gets tired. So I play natural, I wish I was like Bartrum and could out last anyone, he is natural and can play for 60 hours. I think you either have it or you dont, he does-I dont.