This is an e mail that i sent to bowtech and the reply that i got back about my defender, hope this helps!
squirreldog

both those sights and rest should work, however, without an extended
windage bar you will maximize the left distance. One of the ways that we
have reconciled the problem is by developing the off set pivoting limb
pockets in the 2006 Line



Message Sent:
is it common for 2005 Defender to have trouble sighting in due to a
larger window that the sight wont adjust enouph. to get center. my set
up is whisker bisquit rest and toxonics three pin top dog sight. thanks
Morgan