So I'm working on some custom parts for my Solstice and while painting some aftermarket stuff, I laid down way to much paint and now I have paint runs. So I know I will have to re sand the part and start over. My question is, what is the best process for doing this? Do I need to sand only the spots with the paint runs, or do I need to sand down those spots plus the entire piece again before repainting? Does anyone have a step by step process? Can someone tell me what sand paper grit I need to start with, numbers and all? Any help with this would be much appreciated:yesnod:.