DaveC,
I' ve been shooting the 80 and 100 grain MM' s since they hit the market out of a ten year old PSE 2050Z (Maxis Cams) set to 61 lbs and 29 inch draw length. I don' t know the KE, but I' m guessing in the low 60' s. I' ve gotten passthroughs on every shot where I didn' t hit spine or shoulder. Quite often the arrow has been stuck firmly in the ground after passing through.

There is no doubt in my mind that you would have plenty of KE to use these heads. It is very important to have a very well tuned setup and it is paramount that the blades be shaving sharp. Follow these two directives and you will get two huge holes and ridiculous blood trails. Most of my 17 or so deer with these heads have gone down in sight of my stand.