So I got the 10" broken in now. It's still an extremely fast stone, with a good but not outstanding coticule edge (appears to have particles ~3x larger than my best coticules from the breaks in the edge under the scope... "bad/difficult" coticules have particles 10-20x larger, an average modern 6-10x and a good modern or avg vintage 3-6x). Very nice stone but not one I'll shave off of regularly (I like a bit keener edge). Probably will keep it around for the easy dilucotting though when the mood takes me.
edit: Just did a slurry comp to compare. Avg particle size ~2-3x larger than my 2 best coti's, max particle size 3-4x larger. This is right on the nose of good/avg for a vintage coticule... very similar to a very good modern La grise/verte.
edit: Just did a slurry comp to compare. Avg particle size ~2-3x larger than my 2 best coti's, max particle size 3-4x larger. This is right on the nose of good/avg for a vintage coticule... very similar to a very good modern La grise/verte.
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