Oh yeah, when you check out a shop and see their work, find out who shot (actually sprayed) the car, and does that person still work there? Seems that the good ones move around a lot. So that nice paint job may have been shot by a guy who doesn't work there anymore. If you can make out a list of questions to ask a shop and keep track of it, that can help in the selection process. Like others have said, most places don't want to shoot a car that they didn't build up from bare metal...
