When I used to use weed I also had the impression of stuttering less, when in fact I either was just less focused on it or just laughing about it from being high lol Kinda sounds like you are in a honeymoon phase, as somebody said before. That is potentially dangerous because you are going to keep searching for those high moments but you will need to intensify your doses or move to stronger drugs to get the same effect. If anything, it is proven that using drugs will make speech pattern worse, so maybe just skip it altogether, it is not worth it and doesn’t actually solve anything.