You've probably seen these already but on the F18, we use a micro block with becket on the traveler. The sheet / tail that hooks from the jib to the traveler attaches to the becket with a tiny snap shackle. To furl, you just unclip the snap shackle at the jib traveler and furl. You can sail it without the shackle hooked in because it will stop at the micro block on the jib - you just loose half your purchase until you clip it back in.