Those damn opposing cornersTook 30-45 minutes.
I used my large Naniwa flattening stone, same as I use for everything that needs lapping.
I was left with two small opposing corner area's that were not at the same level as the rest of the stone.
It's not a big deal and I may go back and see if I can get it done at a later date. I did have an idea to maybe try the other side of the stone incase it's flatter. I don't have an accurate straight edge to test this out.
Glad to hear this Cal.
That's why I chamfer before, during and after lapping, lol.