i' m shooting a martin panther magnum set at 70lbs with a 29 inch draw. I' m shooting easton xx75 2314' s with 100 grain tips. The sight i am using is a cobra electra-slide. Here' s my problem. My arrows are shooiting are about 30 inches high at 20 yards but my sight is topped out. I can' t raise it anymore. I can move my knocking point up to compensate but then i' m out of tune (porposing). I' m shooting a tm style rest and if i move the move the prongs down my fletching hits the little aluminum piece that holds the prongs. Does anyone know how tto fix this? Please help me!!!!!

thanks alot,
nate