You've thrown me for a loop. I'm not sure what your point is there. Maybe you are confusing rudder turns with flat turns? Your snow craft isn't doing flat turns as it is banking in the same direction that it is turning. My PBF banks the same as your snow craft with rudder input. For example, left rudder causes left banking. Up elevator is then needed to keep from losing altitude because of the left bank induced side slip to the left. The result is a left banked turn not a flat turn. Flat turns are specific maneuvers that require the negation of any roll coupling that the rudder input causes in order to make a turn with the wings level and with fuselage side lift only. All flying craft with positive roll stability will need opposite aileron to maintain a flat turn. Your PBF should behave just like my PBF and your snow craft with rudder input as your PBF needs opposite aileron to maintain a flat turn.