That's true Kermie, and that's what one of the judges said when I was discussing it with him after this year's awards presentation. But the competition has been going for around 40 years, so all the obvious themes have been done. But yes, it's always possible to come up with something new. And it's really a lot of fun trying; gives your flying a whole new dimension. that's probably why we like it so much, and why a lot of people enter year after year.
Incidentally it can be done anywhere in the world, and often is, if you're interested.