Hey Kenny…
Good question. Lapping the diamond stones isn’t necessary… in fact it can damage them. Lapping can be done on the ceramics to even them out and change the finish, since the abrasive is thru the entire stone. But diamonds are just a single layer mounted in the metal, so if you lap them, it can remove the layer and then you’re left with nothing underneath.
All that being said, you can gently rub the diamonds together to break them in (which I guess technically is lapping), but you do this very lightly and only a couple of swipes. I personally don’t recommend it. I killed a diamond stone doing it, and there’s no going back. The stones will break in soon enough.
Hope that makes sense!
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