I have a checkering handle and a couple 16LPI cutters for it sitting in my garage for about two years now with visions of doing some checkering on knife handles and bolsters. So I was working on a beater knife this weekend and decided maybe I wanna checker the front third of the scales. I (luckily) got out a piece of scrap, shape it to the dimms of the handle contour more or less, and get to it. BTW checkering G11 takes a while, you have to stop constantly to clean the packed dust out of the cutter or it slips. I get a decent pattern for the first time, a bit too deep but whatever. 16LPI definately seemed too coarse and sharp. What LPI do you guys use, I do not wanna get anything too fine and at the same time not get something fine enough? Maybe 22? Oh and the knife was a fairly large handled piece with a 5" blade. I guess the smaller the piece you are checkering the finer you want the LPI to be. I could see using 24LPI on a slipjoint or other small knife.