Joe, and David;Are you using a winch to trim the main, or are you trying to sheet in by hand (while going to windward)? Is the winch self tailing? What other task would this winch be doing while you are sailing? I always leave the main sheet on the winch while sailing (mine goes through a stopper), and just engage the stopper if I need the winch for another task, such as adjusting the luff tension, or reefing.Mike