Unlike larger sailboats, where the goal is often to proceed on a course for an extended length of time, Sunfish are usually sailed with more frequent heading changes. Even when sailing a straight course Sunfish require frequent main sheet adjustments to sail most efficiently. That's why I prefer the ratchet block which makes it easy to add and ease sheet tension as necessary and a tiller extension with a universal joint. On those very rare occasions, when I need both hands for something other than boat control, I find it easy to put a slip knot in the sheet at the block and lay the hiking stick on the deck so I can sit on it to hold course. I can get my sandwich out of the cuddy and unwrapped, grab the sheet, and hold sandwich and hiking stick in my aft hand and enjoy my lunch. Other than that, to me the joy of Sunfish sailing is the constant tweaking of mainsheet and rudder to get the absolute best performance from the boat in the wind that nature provides. I can't recall a time, when I actually got all that the boat was capable of, but the fun is in the trying.
Steve King