I was wondering about the Summit brand paint because the price is very good so I decided to give it a shot on the Grand Prix. I was just looking for a driver quality job to get the thing out of primer. I went with the good 2K primer which I really liked. It went on very nice, built up very good, and was easy to sand. I used the single stage paint kit which was about $100.00. I am very impressed by the product. It sprayed very well and the results are much better than I expected. I did some searching and it appears that it's made by Sherwin Williams which is what I've been using for the past few years anyway.
It's the stuff you learn after you know it all that's important