RE: muzzy zero effect??
I don't know if it will work with that bow or not, well I am pretty sure it will I just don't know what configuration you would need. Contact muzzy and they will be able to tell you for sure.
The Zero Effect is actually a very simple rest when you look at it.
I would not say for sure if it will fix your problem though. You should be able to get the NAP rest to work just fine. Before spending $100 bucks on another rest I would try to figure out why the one you have doesn't work. I am guessing it is not set up quite right. There is nothing wrong with the 4000, it is just a different design than the muzzy is all.
Paul