Check page 47 here for a diagram of the C2 cunningham/downhaul takeup:
http://www.goodalldesign.com.au/Catamaran/index.php/owners-corner/documentation/15-c2-manualJib sheet takeup is a bit simpler but I couldn't find a drawing. Attempting to describe here:
For Starboard jib sheet, bungie starts at stbd end-cap, goes inside beam to a block on port side, then returns inside beam to stbd side where it is attached to the stbd sheet. Unstretched bungie is usually a bit more than beam length. You may have to adjust length to get the right tension. I found it is easier to attached the bungie to the sheet on the port side and then pull it through as needed.
Reverse for port side sheet.
btw - not all bungie is created equal - don't ask me how I know
. Go for the good stuff
http://www.apsltd.com/covered-solid-elastomer-stretch-cord.htmlI don't have any special takeup for the rotation control. Just looped around the side-stay and terminated at the tramp.