Weight equalisation

Tink, interesting design, did you ever look at moving the smaller hull from side to side ? Like a boom, perhaps have a spring to lift it out of the water when you took your weight off it.

A couple of years ago, I looked into using small retractable foils to aid in keeping boat flat, 0ne either side, leeward foil would provide lift, but only enough to keep boat flat, micro adjustments would be made by helm hiking, (actually would have been a perching boar), foils would be snug to hull when not in use.

Great, now you have gone up in my estimation.
Here's my radical sail development which allowed the luff curve to be radically altered to vary the twist which actually worked, but the craft I tried to use it on which became knicknamed the Water Pusher, by my nephew who was an Olympic hope(less) at the time and ended up with me clinging to a buoy waiting to be rescued

The sail had constantly variable luff curve which enable me to go quite fast, it also allowed me to survive a 48 knots of wind run alongside Those big kids Dunkerbeck and Dave White, unfortunateely the 48 knot squall was a header so none of us went particularly fast, but the fact I got through carrying 2 sq mtr more sail than them proved my concept. (It was 7 sqmtr).

To adjust it you use the straps to induce more negative curve at the head and more more positive in the mid section with the mast already pre bent and a sleeve to covere the innards.







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And here's the fateful water pusher that failed.