Track was good, I really enjoyed the layout, but I think some more attention to the marshalling situation is needed for the WoD.
Would be nice to get everyone pitting in the same space, any chance of using the other hall next to where the food was? This would also make the PA issue rather easier as everyone would be in the same place, so it wouldn't require any extra speakers.
Finally, it might be better to aim for about an hour between runs so take a small break at the end of each round if required. Maybe a half hour break for lunch as that was quite pleasant, although I doubt the weather will be good enough for another barbie in December...
Cracking meeting though, I'll definitely be running at as many rounds as I can manage.