Yes I did mean use the skew on the foot of the bowl. I was told that is how you get the undercut so the jaws hold the piece from the inside out. Since the bowl blank is from questionable (stability) material, I decided to turn a rim (?term) on the outside the the foot. The jaws will grasp the piece from the outside and should exert pressure inward. Thought it might be safter that way; maybe help hold the piece together. When it's dry, I could remove this rim when refining the outside. The question is, it only takes ca 1 month to dry enough to be ready to finish? I heard 6 mos.
I know you must be getting tired of replying and that I'm problably beating this subject to death, but I value your advice.