Lloyd, I was playing with Tom's free bowl plan. I noticed something interesting. Here is what I did. - Started SP - Load Tom's saved plan - Changed profile to a different bowl design. SP converted the design over in the bowl view just fine. - instead of 48 segments I wanted a design with 36. So I reduced segments numbers from 48 to 36. SP accepted the new - Went into summary, got negative numbers in one species -4 16 24 = 36 segments - Going into paint view and counted and got 6 18 12 = 36 segments. If I go back to 48 segments (Toms orginal, the math is correct again. I can only imagine all the calculations going on when playing with number of segments after a bowl has been painted.