I think if we were to do it, we would have to put in some kind of rule where you can't do the same trick every time, that way someone with a banger trick like say a Double cork 10 can't just throw it every time. This would force people to display their whole bag of tricks and not just that one banger.
I think this idea would be good for a smaller contest, but because the Photo Annual is such a big contest with so many people, it would take FOREVER. I mean, it'd be soooo long.