In those conditions I ease the main untill the leeach tell tales are flowing. The traveller is a bit out as Mark says but the main is not as loose as you would do on a monohull.

I thought easing the main too much would cause that the spinnaker has less effect as there is a lot of dirty air coming from the main.

Kathleen sits on the leeward hull almost at the front beam, I'm on the windward one ofcourse at the front beam.
This makes it very difficult however to play the main, so in lighter wind I usually leave it in the same position on one tack.

Boards (high aspect) are up as they are for heavy winds (halfway, a little higher then the rudders). Only in moderate winds pull them not that high to generate the lift.

Kathleen trims the spin so the front is on the edge of collapsing.

Anyone changing the tension of the front of the spin for lighter versus stronger wind? (easy the halyard a bit or setting the spin pole a litter higher)?

Concerning the steering I'm sure I can improve to make the S curves longer, which should keep more speed in the boat.

Well, I hope we still have some nice sunny light wind days... :-) to practice...