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This is slightly tangential, but I've found since using
the Shapton stones that the 4k is too fine to do what
I would consider minor sharpening. I've had to drop
down to the 2k on new razors a...

I suppose the back of my GlassStones counts as
`in-writing'...

1000 mesh - 14.7 micron
2000 mesh - 7.35 micron
4000 mesh - 3.68 micron
8000 mesh - 1.84 micron
16000 mesh - 0.92 micron
30000...