@ Peter Frank I also ride my board flat in light wind. Standing on the fins is the key, but I don't need 3 fins to point higher. I've already done the comparison. Less drag = more speed = more apparent wind. A center fin causes a lot more drag than a side fin. That's the reason why race boards don't...
My 5'11'' Rawson is awesome in twin.
A lot of control, turns tight and no sliding in hard bottom turns.
This shape is so sweet , the round tail his magic.
I only use the center fin when it's big.
Another good option is using a small trailer.
I did found the board faster, improved my lightwind.