My first rant.
I've been rebuilding a 66 Chevy convertible since September and it's almost ready for paint. The owner, Charlie, showed up over the weekend and says he wants me to use Dupont paint. I've been using Martin Senour paint for the last 20 years on close to 1000 cars and have never had a problem that I could blame on the paint. I asked him why and he said that a coworker told him Dupont is the best paint to use and that he should insist on having it. Is Dupont really "the best"? I think there probably are better brands than M/S but Dupont isn't one of them
I told him if he really has to have Dupont I'll use it but after sleeping on it I've changed my mind.
I have no idea who this guy is who likes dupont or if he ever painted a car. I don't like changing my procedures based on the whims of an idiot.
If the Charlie thinks his friend knows more about painting than I do then I think the Dupont guy should do the paint job.

I replaced the doors, fenders, hood, trunklid, tail light panel and quarter panels on this car as well as the floorboards and trunk floor. All that's left of the original body is a 4 inch strip around the trunk. Charlie has never been happy with anything Ive done up to this point and is slow in paying his bill. If he doesn't like it now he won't like it painted either.

It seems like a no win situation to me. I'm going to tell him to pay his bill and take his car elsewhere to be painted.
Am I wrong? Should I use M/S and listen to him bitch some more? Should I use Dupont and listen to him bitch anyway? Or quit now and let him bitch to his wife and friends? I have a couple of good repeat customers on the waiting list. The more I talk to Charlie the more I want out of this project.

Thanks for letting me rant and blow off steam. I feel better now.