Maybe I'm finally learning the language. I turned a natural edge bowl this weekend in a Russian Olive burl. I even thought ahead to turn, detail and sand the bottom before I reverse mounted and did the outside walls and inside. Somehow I had a tool catch (I never even felt it) and tore out a small chunk from the bottom outside edge. Now I have to reverse mount the bowl and redo the bottom. The question is how do I mount it? Because of the uneven top, I can't mount it with cole jaws. I thought about using a doughnut chuck, but how do I get the bowl mounted exactly on center as before, so that the re-turned bottom looks good. This one worked so well, that I don't want to ruin it. Any good suggestions for re-mounting? I need some detailed instructions, and/or pictures if available. Sorry the pictures are so crude, I was hurrying.