I almost certainly play worse when I am stoned, but a good majority of my breakthroughs in thought process or leak fixing have been done while high (sad I know). It just seems like I'll think about a hand and have alot more fun trying to figure out why everything is the way it is etc and realise I should do a more often or whatever.
Maybe thats the same sober thought procses for anyone who really really enjoys poker though, kinda sad for me