I have used Muzzy fixed blade 100grn. For a very long time now and have yet to loose an animal that I placed even a decent shot into. I've been hunting with a bow since the age of 8 (40+ years) and I will most likely use them a lot longer. I've tried the mechanical heads and had better than average luck with them, but if you don't pass through the blood trail sometimes got a little hard to find. If you tune your bow to shoot fixed blade as well as it does tips then you won't have to reset your sights. I shoot my muzzys off the same settings as my field points. Good luck and good hunting