It's just that I have about1 1/2dozen of the Muzzys between the wife and I in our case and on hunting arrows that get used over and over and over in the last 10 years or so. That's a good thing about the Muzzys, you don't need to buy more unless you loose some

To sharpen them better than factory only takes a Lansky and a minute or two for each head. Then you KNOW that it will cut like a surgeon's instrument. The Slick Trick heads I bought to try out weren't sharp at all by my standards but they were after I got done with them. The ST's shoot the same as my field points though, probably better than the Muzzys