Gyro on thrust vector in Rookie ???????

What would any one suggest is it neded yes no and if so which one.

Thanks

A buddy of mine has one on his for side to side motion. (He has a dual axis thrust vector pipe.)---When he releases the stick after a wild spin the model immediately corrects itself and flies out of the spin easily---I don't know which gyro he uses though--I would imagine any of the piezo gyros on the market would work well although you do get what you pay for...

Kevin