i use the files with the safe edges on the narrow sides, the file teeth come to a definite abrupt end with those. I mark the edges with a felt tip, I have been doing that since the 70s, remove it with file strokes, remark and do it again with fewer and lighter strokes. Chase the bur to a minimum, then a few strokes with a diamond hone. Then taking the file reversed and tilted using those file teeth at a 45 by 45 degree angle, I pull a serration with medium pressure, then gently clean the edge with a diamond hone and leather strop. Go ahead a say that does not work like something you can shave your cat with, but with any 1 to 3 or soft head, it make a strong edge that kills deer very effectively. Shaving cats is harder than you may think, good thing we don't shave deer, we kill them and eat them.