Been using Muzzy broadheads for over 15 yrs never encountered the above issue. Muzzy became #1 for a reason. If they didn't work I wouldn't use them. They are the baddest fixed blade out there, they fly perfect, and the blades stay put. What else would one want from a broadhead. However, It's like buying a truck, whatever you like stick with it.
Thanks Hunting Man,
There's nothing like first hand experience for good advice.