I don't want to hijack this post but it contains good info that I can use (or unfortunately for the OP, not use) Does 3M have a "debonding" procedure? Surely they've tried it. I would think heat would cause warpage.
I have a 64 Valiant that needs the same panels so do you guys recommend a lap joint horizontally and NOT butt welded?
P.S. I love my MIG and have the panels.