I have never used a Muzzy rest although they interest me. As for nock travel not being level on a one cam bow.............I will hold my tongue best I can. The last two one cam bows I have owned(Martin Cougar Magnum with fusion cam and my current Bowtech Patriot with infinity cam) shoot bullet holes and are set up best using EXACTLY the same nocking point as my past dual cam bows. Mine always works out to nearly exactly 3/16" above the bottom of the arrow upon the rest. String creep and/or cam timing being off accounts for unlevel nock travel IMO.