VA,
My MQ1 has a brace heighht of 7 1/4" , and my MZE is on the rear hole in the arm, closest to you when shooting the bow. I called Muzzy when I installed mine, and they told me to do this. They said that the Mathews have less cable travel, so the written instructions of brace height vs. which hole, didn' t apply to Mathews. Using this hole will give the longest measurement on the adjustment screw, so if you need to try another hole, it won' t be too short for them. I hope this helps you out some.
Charlie