My cub cadet rzt s 46 (2014 model) leaves a taller strip of grass along the left side when I zero turn the mower - strip mowing. I have leveled the deck myself and the dealer also releveled the deck (side to side and front to back with front about 1/4 inch lower than back), said it was perfect, but there is still about a 6 to 8 inch strip of grass that is at least a quarter inch higher where the overlap is on left side of deck. The right side of deck is perfect in its overlap. So every other pass I have this high ridge of grass. I can go back over the ridge, mowing down the middle, but that defeats the purpose of a larger deck. I'm stumped and so is my dealer.