I finally noticed my knee kicker was set too low after a guy pointed at my carpet at a job in Akron
He watched me stretch a room and said my kicker head was digging in and slipping, which was why my seams kept creeping. I checked the teeth height and sure enough they were set shallow, so the grabbing was happening on the pad instead of the backing. What's the right teeth depth you all run for a 40 oz cut pile?