I had great success today! I got a much better Al. coat in my belljar ( salad bowl).

This is a 140mm dia. pyrex salad bowl. I wet ground the rim flat on a sheet of glass with some carbide powder. 80/200/400 grits I think. They are the ones I have, and it was a few months ago now.







This was the best I got before I made a few changes. But even this help me keep the faith!