Did you join two pieces of metal together or just run a bead on the surface of a single piece, if that is the case, do you feel that there will be much call for this when you come to repairing your car?
It was just a bead on the surface. I'm reasonably confident I could do a butt join based on my exerience with the thin sheet in the "0.8mm" arc thread. But because it would take a lot of cutting and alignment, I can't be bothered for this bit of scrap metal. I hope my "R&D" will prove useful when the time comes to work on a car.