Originally Posted by
Steve56
Even a decently worn 1200 plate will leave some scratches, it is 1200 after all, though as Ron says the scratches are not harmful. Those scratches though, always seemed to be 'not in harmony' with the idea of a high end jnat so now I lap using sandpaper on plate glass up to 2000 grit on the finest finishers. Here's a couple of tips to try.
If you're using synths, try the King 8000 grit slurry stone to clean hones after use and smooth the surface after lapping. This stone I believe, was designed to create slurry, and it does, but I can tell the surface is much smoother than after using the Naniwa brown biscuit.
On a jnat finisher, nearly all the wear comes from raising the slurry with a tomo, not honing the razor. Use the tomo with even pressure over the entire hone surface and you'll almost never have to lap the stone.
Cheers, Steve