Upwind mode: spanner pointing at tyhe shroud (roughly)
Note:
Pink rope is lead out the shrouds to allow fine tune from the wire.
Orange rope is cleated, thus holding the other end of the fine tune pink close to the tramp.
Pink rope with red "blob" on it is slack (this now runs up to a turning blick on the boom and then back aft so it can be pulled from the bacl of the boat.
Pull the "blob" and the orange rope incleats from the plate and allows the mast to swing free (not shown) but you can see the slack
When you pull the spi downhaul (red rope to the left) the system automatically re-tensions as the orange rope re-cleats and the rotation goes back to the same place....