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They are flat, what the later steps are doing is makeing them smooth.

I certainly noticed the difference in my swaty when I lapded it with the Norton flattening stone vs a 1200 DMT.

It might...

That seems highly dependant on the stone, at least by how long people have reported it took to lap their chinese 12k's. Some report hours with a D8C others minutes.

I got mine yesterday and it...