Some might want to adjust the jib luff tension tighter for better pointing ability upwind and loosen it downwind to add a little more belly/power to the sail and let it rotate a little better. My 5.2 had the jib uphaul rigged with 3:1 purchase that ended in a v-jam cleat all located on the port side of the mast. I really didn't mess with it that often but did use it to crank on the jib uphaul as it got windier. I did get to the point where we adjusted the jib uphaul frequently on the Nacra 6.0 for the various points of sail.

The rotator should be set for optimum performance as follows: upwind, close hauled, sailing = mast rotated so that the luff groove (at the back) is pointing at the leeward shroud. This should give you the best mainsail shape possible for upwind. Downwind, the mast should be rotated to 90 degrees so that the luff groove is now pointed down the main beam. Again, this is to provide the best leading edge of the mast/sail and give the best sail shape.