slayer I believe the pendulm is designed to compensate for the arrow impacting high when in elevated position.

Say you use your 30 yd pin (sighted on the ground) on a deer thats 30yds out and your 15-20 feet up, your arrow will impact high on the deer. The pendulum swings out and up giving you the adjustment to not impact high. Just in case you didnt know.
I dont see how form or bending will change the impact of the arrow from being high, but hey if im wrong enlighten me.