the logistics seem to work out best with the crew on the leward bow and the skipper just forward of the crossbar on the windward hull.
I should be more specific when I say that the skipper sits "in the middle." I usually sit on, or as close to the front crossbar as possible and as close to the mast as possible. Getting the sterns up is key. My crew weighs 175 pounds and can easily get the sterns clear with me on the crossbar.