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So, I can use each stone, running various tests every 20 laps or so. Keep using the same stone as long as there is improvement. When there is no more improvement, note the test results for future...

Just an idea: Maybe someone can supply "standardized hairs" for razor testing. It would take some uncertainty out of it.

I agree, there is nothing like learning from the masters in person.

Judging from the article, I may be able to use:
1K: Thumb Nail Test. Should I be able to cut arm hair after 1K?
4K: Thumb Pad Test
8K: Hanging Hair Test
12K: Shave Test

I will also be using...

Hi all,

I have this stone progression:
Norton 1K -> Norton 4K -> Norton 8K -> Chinese 12K -> Plain leather strop

What are good sharpness tests for each of these steps? I would like to know...