You are too funny Ken
I'll definitely try some of those options. Much appreciate you suggesting them.
Do you have any of the slurry stones you mention and or the Tajima on hand? The only other natural I have is the Aono Aoto. I do have the CBN 1.5 so will try that.
Mean time, I'll also try rubbing some of my high grit synthetics on it and see how that goes.