I will not spray any clear (or likely any primer) other than SPI. I've been around many years and have sprayed nearly everything on the market. SPI Euro2020 and SPI UV are the best I've used at any price. But SPI doesn't do much with color and once owning a jobber store, I understand why. I have sprayed nearly everything on the market (not everything but the list is too long). You cannot get good quality/low cost basecoat because the major manufacturers HAVE to give you a reason to buy the high end, AND there are few independents. Once Matrix, bought out, Metalux, bought out........Meaning, Limco will never perform like Diamont, Omni will never perform like Deltron and Global. They HAVE to give you a reason to pay for the "good" stuff....Anyway, I have a young kid that helps me and doing a pro bono job for him. He wanted Viper GTS Blue and it turns out UreKem has "Dark Quasar Blue" that is a near perfect match. I'd like to give the small independent guy a shot on color. I talked to them and they are trying to compete with HOK and do only a few OE colors, mostly just cross overs from HOK. It will be cleared with Euro2020. I'll keep you posted on my thoughts.