I mentioned two coats because two coats is the standard amount of clear that it would take to give you a 2 mil film thickness, which is standard in the industry. Mind you, painters will say that we think that car manufacturers are starting to cheap out and not put that much clear on new vehicles anymore. Im really curious to see what you mean by cracking. The only thing I can come up with, is that he used a cheap lacquer primer and whatever topcoat he put on reacted with it. But then again, that would be noticeable almost immediately, so Im kind of at a loss to understand without seeing pics
