Hi all, I just got a new L6060. I had the dealer put 3 rear remotes on this unit for me. This is a Cab model. Question is 2 of the controls do not return to center when you let go of the. this is 1 and 2 they will dead head if I don't return them to center. #3 will always come back to center with no problem. Is this how they all work or did the dealer mess up the install and the linkage has a binding problem.