Dave – Don’t forget to measure thickness (strength). That is moderately critical. Whenever I have to do that, I anneal enough of the end to make certain I can get it straight, so that my measurement is not across the rise in the arc. To anneal it, just heat it to a dull cherry red, and allow it to cool slowly. If you have trouble with it cooling too fast, lay it on some sand in a pie pan, and heat the whole shebang. If need be, you can even do that on the kitchen stovetop.
