Thanks guys,

I really haven't had any problems with the arrow falling off the rest. Thats why I was considering cutting two inches off. Just wanted to make sure I was going to benifit from doing so. The"Back" of the thunderhead will still be just past the knuckles at full draw.

ijimmiy, What arrow would you select for this set up so that the spine is correct? I have only shot the CX400 and seem to really like them.

Thanks for the help!!