medic, the problem I found with my Defender was the center shot. I don't see anywhere in this thread that you had the center shot setup correctly. A lot of the rests do not have enough left adjustement for the Binary Cam system. Double check that before you throw your bow. If your rest won't move left enough, which I'm guessing is the problem, buy a different rest. I'm using the QAD Ultra Rest and it is working great. QAD includes a spacer just because of the Bowtechs. It will move the rest out another 3/16". Keep us posted on what you find.