My tank sat empty since early December. One of my last projects on the plane which I accomplished just last week was the fuel set up. When I went to remove the stopper I did notice that the screw did not need the torque that I expected to remove it. Seems like the stopper could have shrunk a bit from being dry for an extended period. Took the UCD for its maiden today after our spring clean up at the field. The wind was relentless. No way with this kite. Joe