For what it's worth, I did try the ceramic media, did not work any better than the US and just as wet, soapy. I would not recommend it any more than Lyman would....when I spoke to a tech there, he told me that they do not recommend it, (yet they sell the vibratory bowl for doing just that). Go figure.

Anyway, I was not pleased with the results so I am informing you that I think that it's a waste of time to pursue ceramic in a vibratory. Plus, it's expensive!