Tony,
  Here is a link to the WAG FAI information: http://www.worldairgames.org/2009/sp.../aeromodelling

In short they did use the Artistic Aerobatics format at the games.  They are after crowd appeal, and we all know what a crowd pleaser flying sequences is.  LOL!

Donatas did post his setup on a thread on RCG, I don't remember what it was off the top of my head.

Yes, 3D does use less energy than flying the sequences.  Half the time you are floating around in high alpha at 1/3 throttle.