I hate to resurrect a year old thread but....After shooting nearly every brand for the last 30 years. I was spraying when they started base/clear. In the mid '80's when Sherwin was telling everyone about their "new" base/clear system that was nothing but lacquer and peeled like sheets in less than a year. Anyway, I've sprayed them all. They all have an issue or two. Some are a personal preference. Like I don't like how thick standox is, I don't like Sherwin's match (or lack of), I don't like Chroma anything coverage and de-nibing. Anyway my rant is over. Through all the years I was mostly a Diamont or Glasurit sprayer. My friend opened a Sikkens store so I changed, did not like it, went back to Diamont. I have sprayed Wanda about two dozen times and I'm putting in a machine. Is it the best thing I have ever sprayed, I don't think so?!? But it is no worst than any of the others (majors) I have sprayed and a lot less expensive. It sprays and looks a lot like Diamont so I would guess that catalyzing the basecoat is a must to keep rock chips from growing. That is why diamont came out with BCH2 basecoat catalyst to start with.