Bummer oh well I'll keep searching posts. The Rustoleum paint really covers well, but cure time is ridiculously slow in my experience.
My best spraying rattle can experience is the Krylon high temp BBQ grill paint, extremely limited color palette and requires some heat to fully cure, but I've NEVER had a clog, spit or can that wouldn't spray. It dries to the touch fast and you would have to try real hard to make a run on a vertical surface. Covers well. Cures to a satin finish and once cured with added heat can polish out pretty bright. Super engine and frame paint pretty durable when properly cured ...don't think I've ever attempted to clear coat the stuff. UV resistence long term is probably not that great, but for quick patina on a vintage project it's worth consideration.
The spray can tip looks to be the same on all Krylon products so I'm thinking it's the paint's composition that is uniquely formulated for superior application. Rick C.