I noticed mine was pulling up slightly in the center so I replaced the middle 4-5 (maybe 6) rivets with SS flat head bolts with lock nuts. It was difficult but I used a socket wrench with a bit of paper in the socket to hold the nut out a little since the bolts I got were too short. this was, of course then taped to the end of the tiller ext. make sure you do that far one first. Glad I did this after I saw Timbo's trav at tradwinds (though his went on the end of the trav)