Thanks but why for each of the two you suggested?

500fps... the two you mention are about how quick? Also you say that sometimes you can shoot off knocks from 30yds at 350fps but the next day it's not the same story anymore. Wouldn't this be a form or conditions consistency problem and not a bow consistency problem? If you can make a bow perform like that one day, it should still perform like that the next day unless you dropped the sucker or are shooting in the wind/rain right? I humbly ask yours and all of yours' replies.