A lot of people don't understand how these advertised speeds are generated. They buy a new bow that is rated for say 330 fps and get really upset when they set it up and find it only shoots 280 fps. We sold a new Z7 to a guy this year who came right out and told us he was going to remove the monkey tails and string stopper as soon as he got it home and it better shoot 330 fps or else! He is a 30" draw and shoots heavy poundage but with the arrows he shoots he will never see 330 fps. My Z7 shoots 280 with my hunting arrows and 298 with my 3-d set up with a 29" draw and 61#. There are still a couple things I could do to jump it over 300 fps but it shoots fine where it is.