I just purchased a 1984 Nacra 5.2.
I'm a bit confused on how to rig the jib blocks.
There are no jib tracks on the decks.
There is a cable on both sides running underneith the trampoline from the rear cross bar to the the front one.
There are two slits in the trampoline about midway just over the cable on both sides about 6" apart.
There's a line tied to each cable at the rear crossbar eyelets. The length of each reaches to about the center of the slits in the trampoline.

So do the jib blocks attach to the cable through the trampoline?
Does the line from the rear cross bar come over or under the top of the trampoline to the jib block?
I also heard that some kind of insulation can be used on the cable (hose tubing?).

Any input on this would be great!


Thanks