Alex, glad I left early and had a good nights sleep
On the way home I was thinking about the site too, but I think the concrete pads at the airstrip are better:
1. Less dust kicked up around the scopes if they're on the concrete, which matters for dobs with open bottom ends.
2. In warmer weather the mozzies will eat you alive at the hanging swamp. Serious problem to the extent I wouldn't consider trying - I've already had a March fly bite at the strip that took a year to heal. The concrete slabs being in a much more open location mean fewer mozzies.
3. If it's so windy that you can't use a dob on the old spot (the concrete pads) the seeing will be crap anyway.
4. The open fire is all very well on a rotten night, but ruins the site for observing. Conversely the concrete pads are close enough to the cabin.
The mt Blackheath site - with proper fireplaces in a location that screens the light - was better in that you could both observe and have an open fire nearby without annoying anyone. And no March flies there.
One downside with the concrete pads is the racket from Rods generator.