You give some good info about your setup, but it still isn't enough. What all is on the string and where is it located,exactly. And once you have all that figured out you need to have the "measured" draw length of the bow and the peak weight. What kind of string is on the bow?

Man there are so many variables and it's all guess work. Chrono the bow and "git-r-done". Then you'll know for sure.