Tack and hook fittings are designed to fit into our gooseneck assemblies.
The cross bolt of the gooseneck passes through the lower holes in the plates.
The tack of the sail fits between the upper holes of the plates and when reefing the luff cringles hook over the side hooks.
Alternatively, make one hook into a loop with short reef pennant made up permanently there, and when reefing pass these through the sail cringle and onto the hook on the other side of the fitting.
