I think it only helps if it constantly stepping the rear out as the rate gyro detects the rate of rotation.. for dirt (stadium truck), sometimes the oversteer might be used to help the car turn in turn corner.. so I am not sure if it would be counter productive with the gyro or not.. on the other hand, for on-road application, where the fastest way is typically having all wheel on the ground hooked up, the gyro might pay more dividend.. (unless you are drifting, which looks cool, but certainly not the fastest way around a race track..!)

Who knows.. that's my thinking / opinion only.. will keep you guys posted, that's for sure!