[i] I will be using Futaba 9202 servos all around except on the rudder where I am going to try a Futaba 9253 digital servo. I have an extra one from my helicopter and want to see how it works. [/B]
That 9253 is a great heli rudder servo. At 30 oz of torque it pushes low resistant surfaces around at a blazing speed of .08 of a second. Unfortunately you need about 90 oz for the rudder on you UCD 46. Try the 9350 @ about 130 oz and .12 or so.
Leo