Just a small digression Mark: I would think the lower third of the sail would have less draft with max draft further aft to compensate for the airflow over the jib?
(Additional non-related question: what website(s) are you planning to use to follow the olympic sailing events?)
Yes please <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />
The way we sailed our Tornado the last years (not the I20, sorry), we used the downhaul, mast rotation and traveller as coarse adjustments. Then we ran the boat with just the mainsheet going to windward. If the conditions changed or the wind was very offset to the waves, we would re-trim as needed so the crew did not have to sheet more than an armlength in puffs/lulls. We trained mostly on a fjord surrounded by largish hills and mountains. With a northerly wind we often had severe gusts. In those conditions I (as helm) held on to the traveller line as an emergency release. Operating the traveller from trapeze while helming is just another skill <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />
