Andy Powell writes in Tech Corner:
"A more expensive but convenient method of attaching the Jib tack is the introduction of the Selden 50mm Quick release snap shackle adapter. This is simply bolted to the Tack bar spigot. This enables quick release of the jib tack and is available from most Chandlerys. It’s important to ensure the bottom bolted section is protected so it does not catch on the kite. It is a simple fit form and function replacement of the long “D” shackle. The upper section that opens can be covered with a looser piece of inner tube to allow easy access when rigging the Jib. The Snap shackle has twice the SWL of the Luff wire so is strong enough and to date I have had no issues with the shackle catching on either the kite or the sheets."
Read more of Andy Powell's Tech Corner