Originally Posted by
regularjoe
Somebody has to explain that bump thing to me sometime. I think the general concensus is that with mirror polishing, etching is lost. But some have had success with MAAS and 0000 norton steel wool using extremely light pressure. Think, "I am the water, carving rock" Meaning to say it takes a long long time. And you might search "tumbler" to see if anybody was able to do it with the brass tumblers. I'm about a week from picking up one of those for myself. Otherwise, it seems like you may be asking to have the cake, and eat it too.