I've got a picture of Hunt and Kris sailing upwind, but it a professionally done pic, so I'm not sure I can post it. Plus it doesnt really show the midboom sheeting very well.

The interesting thing he did was figure out how much he needed to play upwind and put a big stopper ball just past that point. So he could drop it and play the spin downwind.

Looking at the picture, they used a triple block on the boom, a triple with a becket and a cam cleat on the travelor, with a single on the becket and then a single block on the boom in front of the triple and a rachetmatic midboom with a big stopper ball 2 feet past the mid boom block and then enough tail to allow trimming from the trap.

Most cats have the triple and triple with a becket/cam. It pretty easy to add the two singles and the rachematic.

Hope that helps.

Bill