I shot two deer and an elk with the same head. I only sharpened the blades. They are a great head, but I did have to sharpen the blades from the factory. This was the first run blades. I think Gary has them sorted out now. He had a lot of problems with them in the beginning. I think I was his guinea pig I have shot 4 mule deer bucks, 4 elk and several white tails with them. They kill like crazy and leave the best blood trail I have ever had to follow. Flinch