"He who marches out of step hears another drum." ~ Ken Kesey
Had a guy like this a year or so ago. Measured each print, the greatest one he could find was off 1/8th, but he's opinion was basically none were exactly correct. It old him that's a bit unrealistic. He happened to be the son of the person that rents the back of our warehouse so I told him hey keep them and Ill refund you, but you will be back. Sure enough he tried 2 other local printers and they were way way off. He came back for a new job, I told him no thanks, he was shocked at that. I told him best wishes and ignored his next request. We are lucky enough we don't have to work for people like that.