How _exactly_ do you rig your JC strap?

For those of you using a JC strap bungee set up - how exactly do you have it set up? I don't really understand from any of the descriptions I've read how exactly the bungee is fastened/rigged near the tack of the sail. Can anyone provide clear photos of how the bungee goes through/is connected in the tack/eye-bolt area with everything set up and the sail raised? I've been scouring the internet and these forums and can't really seem to find anything with actual detail (i.e. more than just...

How _exactly_ do you rig your JC strap?