Just looking for a few ideas got a bcpp with a park 370 main, Gws DD tail, Efl g90 hh gyro, just installed autorotation main shaft and gear. Now it fly's very good for around 30 seconds and then the tail acts like the hh gyro is not working, it is controllable but just not like it was it will not hold a heading at all after around 30 seconds is it possille that the hh gyro went bad, or could the 20A ESC cause a problem if it was bad. Any Ideas would be very helpfull. Thanks.