I might go a couple of pounds over weight and shoot say 50 arrows before final sanding and finishing.
If you can get within 5# of the target, that's pretty much good enough.
Or if I want 40# at 28" I'll quit taking off weight at say 40# @ 26" and then allows final scraping, sanding and shooting in to let it come back the last 2".
I just finished one, the guy wanted 42#
... so that's what it says on the bow
, to be honest, it depends if you weigh it when first strung or after a day's shooting. It's somewhere between 40# and 45# but i didn't tryu to weigh it accurately as it's impossible.
Del