On the sport side, I've flown a Hanger 9 F4U with gyros on the alerions and the elevator and I didn't like them. It changes the way you think about flying to some degree. The load you put physically on the stick goes down, which to me takes the feel of flying the plane away because it's so stable. Also, if you over sensitize the gyro they will work against the control function meaning the wings (alerion gyro), for example, will waggle flying perfectly level. Having a switch to turn the gyros off in flight is a good thing during the first exploritory flights. The gyro on the rudder is great for takeoffs for sure, but with practice you can physically steer the jet down the runway yourself and save some $ and setup time.