Hi all,My wife and I were just out on our h170 this past weekend and I noticed something: the jibsheet occassionally 'jams' in the "jam cleat" while under heavy load-- sudden puff, or sustained winds above 15. Sometimes my typical method of 'ripping' the sheet-tail skyward in my hand works, but with delayed effect, as it sometimes takes several yanks to free the sheet. Any suggestions on easing this problem in heavy air? We ended up rounding up and furling in the jib altogether eventually, as winds stayed up around 15 or above soon thereafter...but wonder if something short of adding a fairlead car (fore of the jam cleat) will take care of the problem.Full sails to all,Mike