With the boards all the way down, the low hull has a deeper center of resistance and it will lift the windward hull much sooner than if you pull the boards up a bit. You can experiment and see for yourself, it works both upwind and down. If you are overpowered and constantly fighting to keep the windward hull at the right height, pull the leeward board up a little until you can control it. It depends on how long your boat's boards are, as to how much you pull them up, so you have to keep pulling until it's under control. When it gets really wild downwind, I pull them way up, that really calms the boat down and let's you gain control in a gusty situation.

If you look closely at pictures of Inter 20's going upwind in strong winds, you will usually see they have pulled their boards up about 6" as they have very deep boards and don't need that much in high wind.

The reverse works downwind in light air, that is, if you want to go downwind on one hull (and who doesn't?) but it's really light air, be sure your leeward board is all the way down and sit well inboard, (like those A Cat sailors) send your crew "down below" to the front of the low hull to trim the kite from there, and you can usually fly a hull with the help of the spinnaker, downwind in light air. The fun part is trying to keep it ballanced just right!

In heavy wind you will probably want two on the wire, boards half way up and be ready to bear off in the gusts, a footstrap at the back will keep you from getting slingshot around the bow when you stuff the low bow on the bear away. Oh, and hold on to your crew...

Remember, at first you want to go deep from A directly to C mark, but if you got too deep and need to get up, two on the wire with boards up a bit will allow you to reach up a little higher. Or, go deep and fast, dump the chute, reach in to the mark at high speed, T bone the guys coming down on you, all the while yelling "Leward Boat, Get up!"