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Uh oh, you're a paste junkie, Bruce? I'm not saying I'm one......yet. And, I can't even allude to such a thing within earshot of my stones lest they develop spontaneous cracks out of spite.
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IMO, yes to both diamond and chromium oxide in .5 micron with chromium being last of course.

Oddly enough, I just used .5 micron diamond spray last night to strop a razor finishing with stropping...