RE: How many of you coordinate rudder w/ aileron?
A coordinated turn is one in which the rudder and ailerons are moving the airplane in the same direction, i.e. roll left with aileron, yaw left with rudder. In 1:1 scale the amount of this coordination is indicated by the turn and bank indicator, the 'ball!' is centered in the 'u' shaped glass tube indicating that the G forces are going vertically through the airplane. If the ball's not centered then it's an un coordinated turn.
Many good points made here 'cept one. Some airplanes don't need rudder to perform a scale- like turn. In many full scale airplanes there is a small amount of adverse yaw. That is when you add aileron to go left the nose of the plane actually yaws to the right for the first couple of seconds of the turn. So in that type of aircraft you step on the rudder when you apply aileron to get everything going the same direction at once.
Now since we don't have a way to see anything but ridiculously bad pro or ad verse yaw in a model you really can't tell if rudder is helping or not. In the case of the Kadet LT 40, which still shares its forefathers traits, that being designed from a three channel airplane, rudder usually only increases the roll rate, but doesn't aid in coordinating an aileron only turn.
But it all boils down to the flight characteristics of that particular model.