I have used the 3 blade 250 gr glue on for 5 or 6 years now. Very durable, fly great and sharpen easily for me. Consistent quality, of the dozens I have mounted on wood arrows over the years, zero issues spinning true. They have penetrated very well on Elk, deer, bear and mountain goat.
Sharpening. Six inch F.L. Grobet bastard file. Fallkniven DC3 synthetic stone. Technique dull broadhead, holding arrow with broadhead attached, 3 passes pushing the file back to front with equal pressure across two blades, rotate head. repeat 3 passes. After rotating 9 or so times you will "feel" thru the file that the edge is ready for the next step. The DC3 has a diamond dust layered metal piece glued on one side of the synthetic stone, this time pushing the broadhead with LIGHT pressure front to back across the metal side 2 passes each side rotate twice. Flip DC3 over to the synthetic side, with FIRM pressure push broadhead front to back 3 passes each side rotate twice. Should easily shave hair of your arm. In mid-season form I get 4 broadheads shaving sharp in 10 minutes. Which is a hell of alot quicker then the time it took to put this "how to" into words.
The file and stone I use at home and in the back country. The DC3 is rather small (they make larger) but it works for me and keeps space and weight down.
The F.L. Grobet file is by far the best I have found. A Nicholson doesn't come close.
Encouraging to hear people ask about sharpen'em yourself Broadheads.
Good Luck & Good Hunting