There was an article in the tech forum about broadhead sharpening.
http://www.buckmasters.com/Buckmaste...arpFactor.html
Here's an idea from Ausie:
http://forum.hunting.net/asppg/tm.asp?m=688613
I shoot muzzy heads and am not paticularly happy with their sharpness out of the box. I'm going to try Ausies' method and see how it goes.