if your going to use bondo, i suggest after you bondo and even after its dry. wait like at least 3 days before putting paint over it...i waited 2 days i believe and its dry and all but its not fully cured (wrong word)? so after i painted it..id say down the road i noticed some slight lump on the bondo area where it wasnt before. so the bondo actually expanded and finally did its cure. maybe its the cheap bondo...its the grey and red hardner. you should try the gold or yellow one. those sand easier and lighter, its better, and cures faster.

as for me im just sticking to it out of bondo and out of sand paper. and your average peeps cant tell.lol last coat right now and im done! cant wait till the buffing part!