I've asked around and nobody knows. The guys at work get new guns supplied by the company to try now and then. They loved I think the Binks #9. Is that right? That was old school. Of the new HVLP stuff, they like SATA. Other stuff didn't shoot as well, like Binks and DeVilbiss, but most of all, they broke down and needed rebuilding all the time. I followed their advise and got two SATA guns. Haven't shot a drop through them, unfortunately. They better be good. They look top notch, though, and all stainless steel.