Zoama:
Your Ebay link didn't work, so I just searched for diamond lap disk and found lots of them. Thanks for the grit recommendation. I'd never heard of that gadget before. I have a 6" HF grinder that I'm afraid of. It vibrates so bad I won't use it. Tried repositioning the stones and nothing helped.
I do a few thousand dollars with Amazon every year. That's my go to place for random stuff out of the US delivered to my freight forwarder in Medley, Fl. I get it 3 weeks to a month later. Watching Jody has convinced me to go with just 2% Lanthanated, so I can sharpen both ends.