Good morning, this is my first post. However, I have been reading yours' for some time now, and have learned a lot,-thanks. I'm prepping a 79 cougar xr-7. I only have to take it down to bare metal in a few places,-hood,-turtle hull, etc.. The man at the paint store (ppg) said, I should put etching primer on the bare metal, but after reading your post, I think epoxy primer would be better, especially if I get delayed by the weather before I can paint. (1). Do I need both? I have two small spots that need filler. Etching primer doesn't like bondo, and I will have bare metal around that spot (why use it?) (2). Should I just shoot epoxy on the bare metal, sand it later, spot prime with 2k, block sd, epoxy seal, then paint. (3). Should I prime the whole car 2k, block, seal, and paint? The surface is in good shape, just a little rust and wore out paint. (silver)Thanks