the single bevels I am referring to are the No Mercy's by Zwickey. I am swapping them off to someone locally that swears I am an idiot because they are the simplest in the world to sharpen. I will plead guilty to being an idiot, but considering I was clamping the broadheads in a Gatco sharpener and using their diamond hones, I doubt it was my technique.
I have not given up on the whole single bevel concept, but I am switching to some barrel hooping material I scavanged and have used to bang out some "trade goods" style broadheads. The metal banding material has some natural spring to it and is fairly hard stuff. Takes an edge and seems to hold it nicely. Maybe I should make a few scrapers for the bow, as well.