RE: going brushless axe cpv3
I tried going to a brushless main motor and still running the stock tail motor, but through a HH gyro. I just used a brushed esc for the tail motor. The higher power of the brushless main motor creates more torque for the tail motor to overcome. It was too small. Throwing in a brushless motor just because you have one doesn't get you too far. There's no real benefit like longer flight times. I would have to recommed converting everything over to brushless and a HH gyro. You'll end up with a more powerful, better flying heli, cooler running heli.