A Land Far Away

Back in NWN1 I used to make statues quite a lot by applying a petrify effect to normal creature blueprints. The same thing is possible in NWN2 but I cannot for the life of me get the creatures petrified enough to stop performing their default rest animations and shifting from foot to foot. This includes using the gb_statue_sp script as suggested on the forums. I have a vague mental image of something Indio did a while back which was a load of staues frozen in mid run! If anyone has managed to get anything to freeze immobile please share your technique.
Thanks,
Teric

Edit: This includes using EffectParalyse(); too. Unless I don't understand the new parameters.