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I don’t have a Naniwa 10k but do have an old King Icebear 10k. I have always though the finish was very similar to my Naniwia 12k pink super stone.

I recently picked up a new white Naniwia 12k and...

Are you using magnification?

If so, look at the bevel and the edge. Make sure you are getting all the previous stria removed in your progression, otherwise no stone will give you a better edge.
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