my o4 model Bowtech pro 40 dually is shooting around 315 with a 400 grain arrow at 29 inch draw. I am 58 years old and don't have a problem with it.
I've got new 70 pound limbs from Bowtechlast year I may just have to put on some 60 pounders just so I can slow it down enough to shoot ASA tournaments.
But the nice thing about having all that speed for hunting you can misjudge yardage and still be in the vitals. I don't have any problem shooting at something 60 yards away.