thanks for the comments.
We do still pull up the weather board, but if the shock cord holding it up breaks it's tought to keep it up all the way as seen in the photo.

no banana boards on the new boat, no need. she rides much happier than PL. Borderline planing. The rig is a bit further aft and much more raked so overall less pitching moment, edspite a slightly taller wing.

Frozen. The aft section, or 3 as we call it, is a simple NACA section. The front is too essentially. think of the front section as the jib and #3 as the main, the slot is, well it's a slot. So the real foil shape is the combination of the two foils. The main sheet pulls the bottom of 3 to windward and the whole wing wants to go to leeward. So the whole wing wants to fold in half vertically like a piano hinge from tack to tack, so it inverts like a soft sail. This depth to the wing is called camber. Or as I call it on the boat, power.

The deeper the wing the more power and drag it creates. Upwind we flatten it for less power and less drag, same as soft sails only way more efficient.

The angle of attack for the wing is controled by mainsheet.

Endplate, we have thought about it but it adds to our measured wing area without a direct increase in lift.Mostly a reduction in induced drag. good endplates are also sensetive to angle of attack etc. 40 feet in the air pitching around and heeling over the angle of attack is pretty variable. finally it simply adds weight. The best way to go faster in this boat is to toss things overboard or not put them onboard in the first place. 1 pound equals one second per mile advantage. Every ounce is scrutinized.