RE: Downside to the MZE??
I have a bow with perfect shot on it very similar to the MZE except it don,t use the cable guard. I have arm in the back hole or nearest the cables to use the shortest arrow possible
I installed a Timberland no peep on the bow. when set up, you will shoot the bow the same way ever time. beleive me it does work very well cost is about $35.oo
hope this helps
Gregg