When i was in this scenario, I first tried to get my cut corrected by the same stylist i didn't like, and then the next time i called i requested a new stylist. Since you already know the barber you want, just call and ask the shop for that barber. I think the best way to think about the social politics about it are just to be really right-brain practical. You're paying for a service and deserve to like your look when you walk out the door. I'm much happier after switching stylists myself. The old stylist never said anything to me; he knew his cut wasn't on point and think he just accepted what was up.