A duality of 0.5 micron chromium oxide? it almost sounds like a duality of light from physics class LOL ...I think some people just complicate matters too much ...
Harrelson’s first point is that “the very best natural waterstones top out at about 10,000 to 12,000 grit†so Konrad’s final polish with his natural stone may not be contributing to his goal in this case.