paint runs

That kinda looks like a metallic color. I'd avoid single stage metallics like the plague. If you wet sand a run on a single stage metallic it will be very noticeable. That is why god gave us BC/CC, BC goes down dry, and if you hammer the clear anywhere then you are only sanding and buffing the clear coat, not the color and metallics. Which will never alter the appearance of the BC unless you sand all the way through. Single stage is for solid colors and door jambs.