I have the pats quick change hitch, and do like them, but on my finish mower I had to buy a new shaft because it was too short. I borrowed a flail mower and wound up messing the driveshaft plastic cover up because I extended it too far. With the mower down there is good overlap of the covers and shaft but when I raise the 3 point up it goes to the end of the plastic, which waffled the plastic. Has anyone had this issue and used a pto shaft extension? I really don't like the idea of it, putting the joint further out and loading the bearing. Thoughts?