I am assembling a Sig Senior Arf as a second plane to fly around after I solo on me Sig LT-40. I was using a JR 421 for the trainer, but I have since bought a JR 662 for later planes. I am to the part in the Senior's completion that I am installing the servos for the Rudder, Elevator, and Throttle. What I must decide is if I want to try Flaperons on this bird or just go with a Y-harness to attach the Aileron servos to the Receiver. Your suggestions on which to use would be very helpful, before I move on. Thanks in advance.