hi guys
here is my perhaps unusual take on jibs...
lowering the tack has the the same effect as moving the jib leads aft. this lets the head fall to leeward, opening the top of the slot, but possibly causing leech flutter. all common knowlege.
i sail in strong winds and came up with a fully battened 110%jib that roller furls. the battens are parallel with the luff. it made us point better and stopped leech flutter w/o moving the leads forward. actually, only the bottom batten is full. the other 2 are just very long. i have done sail making and have an industrial machine. this idea is offered for free. i'm not trying to sell jibs here. for our sailing this has been a huge improvement in both sailing performance and ease of jib furling. there photos if intrest is there.
ciao