I have 3 different Stay Sharp sharpeners for various blade types. I use them on a belt sander that has a disc sander option with an 800 or 1000 grit disc. I just barely touch them on the disc, just enough to get an even edge with a slight burr. Then I polish them off with a buffering wheel that gives them a mirrored edge. 
I can use this setup with single bevels or double bevel broadheads with the same excellent results. Plus, it's a huge time savings. 
I can use this setup with single bevels or double bevel broadheads with the same excellent results. Plus, it's a huge time savings. 