[elitecustombody]

Spend as much time as you can possibly afford to get your metal smooth to cut down on the amount of filler as J2 mentioned. I'd stay away from using cheap paint as guide coat, because it will be clogging your paper. When you think you're done with primer, shoot one wet coat of over reduced primer with a little basecoat color . You can also mix different color primer for last coat to chase high and low spots.Remember to epoxy before doing any filler work or you will end up redoing it all few years later