So the much anticipated rock arrived yest. Birnando said it was a very hard stone - and he wasn't kidding. Get comfy when lapping - you're gonna be there a while.

I'm hoping to learn what methods have been found productive & helpful w/ this rock. Slurry? Dilute to clear? Have you tried slurry from frangible stones? (thuri/jnat) What methods have been your favorites?

Thank you for your counsel.