Geronimo,

I have been extremely successful using Crock Sticks to sharpen by G5' s. You can pick them up for $10-20 at most local sporting good stores like Academy, etc. I bought mine at a Rocky Mountain Elk Foundation over ten years ago and love them. They work very well on any blade.
Take an old shaft and screw the broadhead into the shaft. Hit each blade 3-5 five times per side and they will be sharp enough to shave. Guaranteed!

Thanks Guys...I think I' ve finally made some progress!