Quote Originally Posted by Phrank View Post
I'm not getting the forehead slap, so I know I'm missing something important.

When I have put a pencil grid on the stone, I then use my DMT to lap the stone flat, with the idea being that once the pencil grid is gone, the stone is then flat i.,e properly "lapped", is this what you're saying Euclid440?
The forehead slap for me was the realization that if the grid does not disappear almost instantly (a couple of figure 8's?) that the grid removal may be more from the slurry - that could be filling a void/pocket.

If I'm correct (and please chime in, don't be shy) if the grid does not disappear quickly I should re-lap until it does.

I'm going to go pour "something brown" in to a tumbler and think about this...