MrDHEJ, I would go with the 9252 on the elevator, and ailerons. 9204 or 9206 on collective, and you will be fine. You dont need more speed than the 9252's put out, but the added torque on the collective is great to have. Consider the Hitec 525BB on the throttle, it works great, and then your 9253 on the tail. I have this setup on both a Freya/YS80, and a Raptor 70 with no problems. Daz...