Which head? I've shot different versions of the 3 blade, 125, 150, 175, and 160 glue on. With a well tuned bow they all fly great. Sharpest, no, you will have to sharpen them to suit yourself, but the 3 blades are a piece of cake to sharpen. They are great carbon steel, edge will rust unless you coat the edge with vaseline or chapstick. They are very tough as I have killed lots of deer and hogs with them and have never been able to damage a head in any way.