I finally got around to painting some parts for the 61 since I got it where it moves under its own power. The front clip that came with it needed work. I got all the body work done and started to paint the parts last weekend but they didn't come out as well as they should. Yesterday I sanded the bad spots out of the base coat but I went through to the primer in several spots so now I have to reprime before I can try the base coat again. What I'm wondering about is, I sanded with 400 wet and I don't know if the primer will stick or do I have to go back over it with something rougher?