Gooseneck Slides are used to allow easy adjustment of the Boom height, and either fit into an integral Track extruded in the Mast Section or to a separate Track mounted on the Mast. On smaller boats use of a Gooseneck Slide will obviate the need for a Halyard Winch, by allowing the use of a rope tackle to tension the sail luff once the Halyard is cleated. All Gooseneck Slides incorporate provisions for attachment of a downhaul line or shackle, or a pin stop to lock it into place on the Track.