That is the nice thing about the Shapton hones. Harrelson said they use the JIS scale, but they put the micron size right on the hone. He said he believes Shapton is the only company to do that, and it certainly is a helpful feature.

My impression from both conversations is that they have no basis even to speculate about the claimed grit range described by that Dictum site.

This is my own speculation, not that of the people I spoke with today...
IF the claim by Dictum were true, then we would see 6k scratch patterns from that "mixed grit 16k hone." Since we don't, the 16k hones that WE are using are NOT mixed grit. Bottom line for me is that I would not buy a Shapton GlassStone from Dictum. Then again, I was not planning on it anyway.