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You need to make sure the hone is hitting the bevel evenly along the whole edge. One easy way to do this is to color the bevel with a magic marker then give it a few laps on the 4k. The magic...

What you're describing could be microchips, or it could be overhoning. Usually with overhoning the matchstick will remove most of this.

In the thread "hones and edges under the microscope" in...