I've been in the same bind and the only repair was a rest that provided more arrow guidence than a drop away could provide. With your "dual cam" bow and level nock travel you shouldn't need any more than a drop zone can provide.
Since two Bowtech dealers couldn't help you out of this messI feel it's time for Bowtech to step up to the plate and help you out.

This thread is gonna lay on my brain because the defender was on my list of bows to look at next year ifI decide to bow shop again.