These are some slick rigs you guys have. This summer mine is going to be for pure recreation and then I'll be ready to dump some more money into it next winter to get everything top notch. (The Harken Cat Quick Rig Downhaul block looks like an easy, although expensive, way to switch to a downhaul system similar to what you and most serious guys are running. Murrays PN 28-0359)

As for the jib halyard I honestly have no idea how that is currently set up. I might try to pull it all out tomorrow and have a look/take some pictures. So far I'm working in baby steps.

And the mast over rotator, I checked it out on Murrays. It doesn't look very much different from what is on it now(un-trained eye)?

I'd love to see you boat. A friend of mine is driving down to south in 2 weeks to pick up a Nacra 6.0 and we are open to see any and all designs that people have so we can get ours properly set up. Once you have it rigged up for the season we'd definitely want to come check it out, if you are willing.