I think it all depends on what you are used to...If you learned to play , high and have always played high, than not being stoned could be detremental to your game. If you are usually sober and learned to play sober than probably would be a deterent. I personally learned to play poker while having a few beers (around) one an hour or so nothing ridiculous so I think I play best when Having a moderate amount just cause that is the mindset in which i learned it and continued to play. Regarding poker it really depends on your goals. If you seriously don't care how you end up and it is just a recreation thing for someone than it probably would not matter what you did as long as you had fun doing it. If your goal is to win than I suggest whatever state of mind you most often play in. Whether that be on drugs or drinking or sober. As far as your game goes play however has worked for you . If what you have been doing doesn't work than smoking something isn't really going to change anything for the negative IDK do what works for you, I will do what works for me...but I am not opposed to smoking pot, however I never play poker that way because I know it would not help my game in any way, simply because my brain is not accustomed to playing poker on weed.