Thanks guys, but the more I think about it, it's probably best that I just pick up this thread after the tank is cut. Cutting old propane tanks has a small tinge of voodoo involved, and there's really not a definitive answer. It all depends on the tank you would be cutting. I'd hate to post something that could potentially hurt somebody that read it, so...
I have spent some time at the American Welding Society Forum, and everything I've done so far is what was recommended by the guys that do tank repairs for a living.
