I agree with Mags on this one, before or after is an important distinction. I am not against anyone smoking up as long as they are not endangering others. And now that it is legal I would probably not pass an opportunity to partake. I do think that getting stoned(or drunk) and then handling a firearm seems irresponsible at best, bordering on gross negligence.
With that said are you looking for an experienced turkey hunter to hunt with, or are you an experienced turkey hunter looking for a partner? If the latter would you be willing to go with someone who has never been turkey hunting?