I don’t flush the grouphwad before shots.
Maybe I am less discerning but there is a boundary beyond whixh coffeemaking becomes too microscopic for me and it becomes stressful rarher than the relaxing routine that it is suoposed to be for me. If those last few dribs after i cut the shot can make such a big difference to turn a great shot into a poor shot, then I’m not noticing that and if I’m not, maybe it isn’t really having any discernible impact. If it is having some impact, then maybe I actually ike the difference that it is making. Either way is fine with me …