I'll second that. Muzzys are very tough and as long as they shoot spot on with your setup your golden. Mine for some reason shoot about 3-4 inches higher than my field points so I too have a seperate yardage tape for them and for me they are dead on accurate out to my max 80 yard mark which is awesome for any fixed head. They go through bone very well and even though bone chews the blades up some times (will do that to any bh blades tho) I've never had them mangled or broken. I've always shot muzzys and have no complaints whats so ever and I'm sure you won't either as long as you put it where you need too. WCL