When you install this equipment, make sure that the inner stay runs parallel to the headstay, meeting the mast about two-thirds of the hoist of the foretriangle. This means that the stay will meet the mast at about the same place as the head of the reefed main. Most cruising-boat masts are sufficiently overbuilt that when the boat is hard on the wind, the leech of the main will support the load of the staysail stay. Once the stay is installed, with a T-fitting at one end, use the turnbuckle at the other to set the proper tension with the tensioning lever engaged. Once set, reverse the stay end for end, so that the turnbuckle is now at the end connected to the mast; now only the T-fitting needs to be secured when not in use. This keeps the heavy hardware from bouncing around on deck.