The dash top will need to be close to a flat finish. Otherwise it will reflect to the windshield obstructing view. I learned this when painting one of those hard shell cover caps many years ago.
Yes, I know. The paint was supposed to be satin but it came out more shiny than I wanted. Must of had something to do with the chip guard base, that was pretty shiny. I will dust over it with some flat to tone it down a bit. :cheers: