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Ahh, ok. So for breaking in the DMT, I just need to run the edge of a chisel over it until...? I'm not sure what I should look for in a scratch pattern to know that it's broken in.

That was what I was asking, but it seems I was a very confused person.

I haven't seen this stated explicitly, but I've pieced together from things people have mentioned in passing that a Norton flattening stone won't be able to flat a DMT 1200 grit (possibly even a...