Mark that all makes sense and pretty much what I did. Number of things from the information that everyone has provided. One wood was to thick, which I was concerned with but felt to be able to tiller I needed to bend the curve into the one end early to match they natural curve on the other. Forced the curve instead of molding the curve utilizing heat. Still worried damage goes deeper than observed, the wood when I rasped just did not come off like dust it was just different.
I can see where I can take it down to the one growth ring for the full length of the curve. We will see how it does.
