They aren't. I personally use G5 montechs and slick trick standards (varies which rig I am using). They are around the 30 dollar range for a 3 pack. The G5's are a one piece design (blades and ferrule are one piece) and extremely tough. I have a few that have been through several deer each. Quick stoning and honing and off to the races they go again. The Slick Tricks with a steep angled design blade setup blow a pretty nice hole out the other side. Both fly dead on equal with my field tips out of a properly tuned bow.

All that being said, you should be fine with those Muzzy's. Muzzy BH's have accounted for thousands of whitetail, elk, hog, moose, caribou, hell pretty much every big game species on the planet.

There are actually 2 broadheads I have been meaning to test myself. Those Muzzy 100gr Phantoms cut on contact full blade design and those Slick Trick Viper Trick that Bronk is using this year. Haven't been able to due to a fall last year breaking my knee and now going through Dante's 7 levels of hell getting it back on track.