Ok, if there is anyone out there with some experience with turning bowls, can you explain this?
Below the core and the mandrel you can see where I am chasing a bead down, and yet in just one part of the bowl the bead is sort of wavy, and only in that portion. I was working hard to hold my tool steady, but maybe I was not working hard enough. You can see it a little better below:
Was the mandrel loosening up and causing a weird wobble?