Search:

Yep, 320 or 400 is all you need to lap the stone. One piece of advice that I follow of Glen's that's served me well; I do about 5-8 quick circles or back and forth strokes w/ my lapping plate before...

I have soaked and just sprayed with water and went. DO NOT use oil on these, only water for naniwas. With the ding you are going to have to reset the bevel. Look at the JANORTON videos, lots of good...