Quote Originally Posted by mparker762 View Post
I agree the cutting efficiency improves as you go up in grit. But the edge doesn't get any narrower past about 4k - something else is improving the cutting efficiency.
I'm still wet behind the ears when it comes to this ... figuratively speaking... so I am letting the big guys fight it out but I am with hi_bud in that ,whatever it is, something is improving (sharpening ?) the edge past 4k.