Talking to Hoglahoo in chat today, I mentioned the lack of feedback on my Norton 4k/8k.

Lee mentioned that after he had his lapped with a GDLP it was like a new hone.

Any reason why? Would a DMT8C have the same effect?

GDLP is diamond on a glass plate, right?


Norton has only been lapped w/ a norton flattening stone in the past.