....................... again this move has nothin to do with your opponents skill (not so much at least) sometimes they HAVE to use their special recoveries to survive, and many characters can't attack after wards / their B recoveries have low priority -----> makes this move useful, when fox or falco do their up B, kill them with it? whats not useful about that? they can't control the speed and trajectory (assuming their trying to get to the stage they got 2 options usually easy to predict) of their up B, so dair it, just dont be dumb and try to dair opponents who still gotta jump or somethin, DAIR CAN BE UNAVOIDABLE LRN TO USE IT, even now with up-b's sweet spotting the ledge, this makes it easier to use dair cause u can predict they're gonna ride the edge of the stage on their recovery, so do it right below the edge, has good priority lrn to time the windup