I've recently acquired a Chaparral with an endless loop string that shoots my 30" CX Heritage 250's w/200 gr. up front really well with a 9" BH (This is the BH it was set at when I was given the bow). I had a custom B-50 Flemish string made for a back-up, but it seems to take a lot of twisting (almost like the string wants to fold over on itself) to reach the 9". I've tried 8 1/2" to 8 5/8", and the arrows seem to work ok, but not as well as when the bow is set at 9". Where should this bow ideally be set at range wise for BH, and am I asking for trouble twisting my string up so much to achieve the 9"? Any help would be greatly aprreciated.