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I dislike that term. I'm guessing at this time you may have a significant flat along the length of your edge. You may want to get a 1000 grit and possibly a DMT325 as a quick way to restore that...

You should be able to get a very shaveable edge from the 8000 grit side of your norton. Many her shaved for years off just that very stone.
Removing a chip from the 4000 grit most likely took quite...