Benjamin moore advance or sherwin williams emerald trim enamel paint is for better and both cure really hard! Superpaint while it may have a nice sheen doesn't dry or cure that hard. You should really try either one. Oh, and both level out really nice, and if using a soft quality brush, you'll likely have very little brush marks, if any at all. Yes, both are that good!
Agree but will note that BM Advance recoat time is 16 hours. It's the main reason so few pro's use it. SW Advance is only 3 hours. Both spray very nicely with the correct equipment.
I use superpaint on the cheap rental properties. Its covers well but is thick and leaves some brush marks. The Emerald is much better for higher end jobs. It levels out much better than superpaint and the urethane version adheres like and oil and has a very hard surface.
If you try a urethane paint you'll find that it leaves no brush marks , and it becomes extremely hard I've found that it's the next best thing to oil paints. Thanks for sharing