Best way to deal with very wavy roof
I have a 67 Mustang coupe. One of my first threads here was about repairing some dents in the roof. I have since repaired those to the best of my abilities and skimmed over them with filler.
However, when I run my flat hand over the roof (the filled areas are on the edges) in the middle where the panel is wide open, I feel many waves. I can't see them, but I can feel them. I'm sure once the shiny epoxy coat goes on they'll dance at me.
The roof is bare metal right now. Is this something that all the blocking and building primer in the world isn't going to fix? I spray all SPI. What are the fixes for this?