This one furthered my education. I think I'm getting the hang of riding the bevel on the inside of the bowl. I tried very hard to copy what all those nice fellas on the internet are showing me, and got through it without any significant catches, and the bowl stayed on the chuck. I also found I don't like hackbetty for turning. It doesn't sand or turn well.
The black marks on the bowl go right through from the inside to the outside, so I'm guessing they are the result of something in the wood, and not a mistake I made, right?