I wish I was there. Man oh man do I wish I was there. Spectator though ha!
Mick,
Every hot wing challenge I've ever seen is run a bit different than yours. The contestants get a set time, usually one or two minutes, and the winner is the one who can eat the most wings in the time given. It's way more fun trust me. You could take the top three finishers and do a round two if you like. The crowds really get into it too.
The most I've ever seen eaten were 24 in one minute. A buddy of mine that I entered into the contest while he was in the loo finished second with 22.5 The winner got about $100 worth of junk and nobody else got squat.
Hope you don't mind me suggesting this.