I post this because of two reasons... 1.) I was talking with James Lyons last night about how to sharpen a Muzzy Phantom Broadhead... 2.) Because Muzzy themselves said this is a good way to do it... So check this link out and I think if you are shooting a two blade head this is the way to go. I opted for the microscopic serrated edge that he describes and with 10 dollars in two files.. I have some of the sharpest heads I have ever used. http://tradgang.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=17;t=000002 Might save you a lot of time and money replacing heads and or buying a sharpener that you can get to work. **the serrated edge that he makes wont shave hair but it will cut through a livestrong band like butter. I was just goofing around and about cut my wrist off. Hope this helps someone out there.