Hi all.
I got a 15k with hopes of improving nanowa ss 12 k...

My observations so far, the stone came with a raised patch of rough that took a while to lap out. So far it seems a fast cutting stone and with pressure makes more swafe than ss12 and ss 8. Lapping was done with old dmt extra course a few times. The feedback is a bit inconsistent so far, like some parts of the stone cut fast and the rest is not doing any work.
I brought a razor to 8 k level ( tree top with resistance) then on to the 15 k with little improvement. Then I tried bringing it to ss12 finish level of treetop with less resistance; and the 15k did not seem to improve the edge.

How much do you have to lap these sones?

How much pressure with the razor? What kind of feedback should I aim for?

What to lap with?

Matt