I was trying to find some threads on filling in the roof to 1/4 panel seam and didn't have great luck so I am starting a new thread. Here is my initial take, feel free to tell me if this is ridiculous or there are better ways. The depth of this area is probably 1/4" which is not that deep. So I was thinking of just using an Evercoat product. I know Rage Gold and Rage Extreme are well liked products on this forum but was research their Quantum product and it looks like a winner. Can I just fill in with my filler of choice or should I use something like All Metal first as a "basecoat" and then do a thinner coat of an Evercoat product? Or can I just go straight with an Evercoat product? The seam is completely welded, so there should be no flex. It's VERY solid, much more than the original GM welding job.