I always worried about the 20s hitting bone. Like a moose rib bone and rolling the edge over. It would defeat the purpose then of having that fine of a scalple edge.
The problem with the accusharp or other similar style sharpeners is they take to much metal off in the one laminated areas and not enough where it goes to the double laminate areas. Like on the eskimos up near the tip. It just cuts to easy, you end up with a shoulder there over time that is extremely difficult to get out on the stone.
Forgot to add, I like using the diamond extra course for changing the angle on the head, it makes fairly quick work, then run throught he stones, course, medium and extra fine really polishing them up with the extra fine and they'll be as sharp as you could ever ask.