Well, not what you are thinking. I have been filling holes in the wife's 55. Ford had some massive holes for their trim. I have been putting washers behind the majority I can reach. The problem is that even though I let it cool and jump around trying to avoid warpage, I just spent the last 2 hours trying to undo my mess on the fender. I finally got it, but what is the proper recourse for when sheetmetal sort of sucks back in and basically causes a dent? How do you get it to pop back to it's original curvature? I ended up using a stud gun and moving the studs around to the lowest areas and working backwards. This is not the correct method, but I didn't know what to do. It's not oil canning, it just looks like a slight dent about 1/8" deep. I have the full length of the car to do, since I am adding the Pontiac Star Chief trim. It's makes a guy rethink doing a custom for sure.