What I have found is that because of the shorter waterline and narrow, knife like bows of the Blade, when it's blowing hard, if you try to heat it up on one hull, you will stuff it and that slows you down a lot or could send you swimming.

If instead you go deep, sit as far back as you can, and bear off in advance of the next puff, you can get it to go nearly dead downwind on a plane with both bows up out of the water, aiming directly at C mark. This is how I ended up sailing through the start line in race 7. I was holding high of it but then got a big puff, had to bear off, and passed about 5 feet inside of the end pin. It was either do that or swim, and since there were no other boats in the area, I figured it was not closed at that time.

If you want to get from A to C as quickly as possible, rather than moving the boat through the water as quickly as possible, this seems to work better than going higher and faster through the water over a longer distance.

In medium wind I have found it goes faster on one hull, as long as you don't start to bury the low bow. As soon as you start to bury the bow in every puff, you are better off to go lower on two hulls, throw your weight back and try to pop the bows up. I pull both board half way up and put my foot on the back of the board to keep from sliding foreward in a nosedive.