I have never shot Muzzy's. I've heard too many weird things about them to bother.

I have shot Thunderheads, like thousands of other guys have. Thunderheads are awesome but always flew just a hair low, no matter what I did.

Then I switched to Magnus Stingers and won't look back. Stingers fly so accurate, they are like a heat seeking missle! [8D] The only trick I did with mine was use the tiny rubber O ring from the leftover box of Thunderheads, and used that on the Stingers. That way, I can get them just snug enough and also be able to get them aligned vertical with the bow string.