Find the appropriate seating position. Mark where seat sits and stick
hook tape to the hull. If hole for backrest rope is not already drilled*,
drill with ¼" drill and knot one end of rope and pull through,
running it through the back of the seat and into the clam cleat.
Install cleat onto the underside
of the deck, just under the cockpit rim, within easy reach. Use 3/16"
holes. Run rope into cleat. (Cleat will only jam the rope properly one
way, so if installed in the wrong direction it won't work.)