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I haven't tried it on any other surface, but I bet it would work just as well on any hard barber hone like a carborundum or Swaty as well...

Hell, it might even work on a piece of glass.:hmmm:

I use a light slurry worked up with another piece of J-nat hone to finish, or use a little diamond plate, depending on the stone.

Or I use a spyderco UF as an baseplate with J-nat slurry on it,...