The next day I unclamped the board to see what I have made. It looks like it is about the correct size this time. I think that the 11" form is going to work. I could spring this one out into a 13" hoop if I had a clean bend.
The Wood is About 13" Across
That egg shape is bothering me though. There is something causing that. It's like the wood is weaker in that particular place when I bend it.
You Can See the Egg Shape Here
It is even more obvious in this photo.
The Egg Shape is Obvious
Maybe it is the oak that is causing this. I should go back to maple and see if I can do better.