I've only had a chance to try the 6300 series epoxy primer, and I can say that it is AWESOME stuff. I have the new turbo 2K primer and some clear to try as well, but haven't had a chance to try them yet. I will post a report on them when I get the chance to use it. The 6300 epoxy is one of the best primers I've ever used. It lays down super smooth, sands easy, and the adhesion is terrific! I've seen some epoxy primers that don't stick well, but this stuff sure does. All I can say is try it for yourself. I'm a PPG guy too, but if the rest of the Southern Polyurethane products are as good as their primer, I'll be using more of it.
Randy Feguson
Metalshaping & Kustom Paint
www.metalmeet.com