Add me to the list. I know what the problem is. It's not caused by the top going down. There is nothing rubbing along it either. The problem occurs when the top goes up. The canvas "creases" as it starts to go up. Have someone else hold the switch to put up the top and watch the top come up. You will see it "crease" in that one spot as it comes up. I watched it happen yesterday as I was trying to figure out the problem. I assume it will eventually wear out the fabric and fail requiring an new top.