The mix sounds great. Cannot help with JR as I fly Futaba. One is not better than the other, I just don't know how the programing system works. The exponetial on sync'n the engines works well.
Servos on the P-61.The prototype had only standard servos for everthing, but if you look the elevator has two and the rudders are not really that big. I turned the plane 45 degrees with rudder only. Ailerons really aren't that big.
Get to work.....I am
Twinman
PS As long as you are into programing...mix the rudders into the engines above 50% throttle. Knife edge and spins much easier. DO not initiate this mix below 50% throttle or you will be chasing the plane on the ground. Not safe.