Yeah Oz,

Water they can collect. Sailing here in the Pacific NW I'm very aware of
it. So is everyone that sails with me. On my old boat,which had the
shelf when I said ; "Ready to Tack" they would scamble to windward as
soon as I said; "Helm's Alee" As the boom swung across the cockpit the
shelf would turn itself inside out with the wind and dump a load of
water in the cockpit and Lee side seat. One dousing trained them very
rapidly.

This Main sails a lot drier.

Ole Thom