My set-up is a 65lb, 29inch draw, Destroyer 350. In the past I would set it up for 3-d's with GT 5575's and get around 322-324fps then switch up to GT 7595's for hunting. This year I just kept it set up with the 7595's and have noticed that it groups a little better down range. There not as fast as the 5575's witch gives me a little more room for error on yardage but I think the payoff is worth it on the farther shots with the accuracy.