I get what you mean ...and that is a possibility. I was looking at the bowl problem from the the direction of mounting the blank and machining in one go, if I mounted the blank then proceeded to mill the outside first then rechucked it as I would under normal circumstances, then milled the inside to finish, problem solved. I still may be better off mounting the router on a rotary table on the cross slide ... I am assuming that I would continue to keep the blank turning in the standard direction to get the cutter into a 'reversed' or concave bowl lip. I had fallen into my normal trap of overcomplicating things...