i have some spots that I have to rebase and reclear from wet sanding. I plan on shooting just the areas I need to with the base and then shooting the whole car again with the clear. my question is what grit sanpaper do I use for the areas for base and what for the rest of the car? My local jobber said to use a red scotchbright pad but that sounded kind of rough to me. What do you guys think. I am using ppg shop line. Thanks