Winsteps

The International Skating Union has introduced yet another rating system in the interests of "fairness". It's aim is definitely to be obscure, and to hide judge behavior from analysts like me. But the only new regulation that might have defeated the sophisticated scheming that went on at Salt Lake City in 2002 is the "only 9 out of 12 judges count". The 9 are supposed to be assigned randomly. But, if I was a crooked judge, this would not deter me. I've a 75% chance that my ratings count ... so I'll go ahead and cheat. If they don't count, then I've lost nothing. If they do count, then I've gained what I wanted.

Does anyone know if the random assignment of judges takes account of the well-established East-West judge bias? Is this stratified "East, West" random sampling, or could we end up with 6 Eastern judges and 3 Western judges making the decisions?