On roller reefing: Jibs are three dimensional and cannot set correctly just roller reefed around the foil or (old Merriman style) luff wire. I don't know if it's still on the market or how well it worked - comments from Brion I hope - but there was a unit that somehow had differentially moving foil sections to roll up more of the middle. The system I've used and works well has foam strips sewn in the luff to accomplish the same. Both systems really need reef tack and peak marks (patches better I think) so you reef to the designed place.
I'm really old-fashioned in that I much preferr hanked on sails in a hard chance. You've not really faced death until you've wrestled a big genny into or out of the foil in a Near Gale.
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