this might be a stupid question but does it make any difference what color primer I use, I plan to paint the truck a dark grey (almost black) I have been using Dupli-color brand (hope it is a quality brand) red "filler primer" I think it is their version of a high build. So my other question is about prep and sanding, what do you sand down to before you prime? I have sanding to 300 grit. and I guess another question How have you guys been preping the surface after sandig and before primer?....
