I rolled on my first coat of black, rustoleum professional, thinned with standard stinky mineral spirits from kelly moore.

It seems that each color will have its own properties in terms of how much it should be thinned, how thin it gets, how much it covers right away. It seemed to cover very well on my first roll over, but I may have some drips to wetsand out. We'll see in a few minutes how it decides to lay out. I'm going to wait the full 24 hours before putting another coat on, then 24 hours before wetsanding that, etc just to be on the very safe side. Temperature in the garage is about 65 or so, and it's not raining so the environmental variables should be OK.

By the way when they say you need the body straight to paint it black, they aint lying..