The windsurfer trapazoid courses might be interesting to try on a non-spin boat.
If you are talking about the "M" courses with all of the gybing marks where you zig-zag back and forth downwind, THAT would be fun. I might even go get myself a beater Hobie 16, body armor and a helmet to play in that game.
Can you imagine gybing from almost a beam reach to almost a beam reach on the other tack in hull flying conditions with a ton of boats on the course? The first boat throws his rudders over as they come in off the wire, the boat nearly stops, and the rest of the fleet makes like a highway pile-up trying not to run the first boat over. Once the commotion clears, they all speed off to the next mark to do it again, several times.
The same thing happens on sailboards, but when the wind is blowing they carve nice tight turns around the marks. Cats, which don't turn that well, would be a different story. I actually think it would be fun...IF you don't mind getting a bunch of dings in your boat, which is why I suggested a beater Hobie 16.
Imagine the body English required as both crew scamble to the back of the boat to raise the bows and pivot around the last few feet of stern. It would be like taking Rick White's roll tacks and gybes to the extreme.