I agree about the money but... slower servos does not make it more smooth, it only delays control input from your radio to the control surface. Using struts, you have the slop from the servo to the control surface added to the slop from one aileron to the other. Yes, more servos makes a greater chance of failure of an individual servo but you will lose one of four ailerons rather than two of four if a servo fails. Yes, Patrick does recommend expensive servos (the 120 Ultimate costs $400) and mine has $500 worth of servos in it and I can't afford many planes (one) with servos like that. (Two 9402's on rudder and elevator, four 9602's on aileron and one on throttle) For sport flying I would use good servos but probably not that expensive. (Futaba 9402's are not cheap) It does go to what you want. The setup you describe probably does fly fine, but I would always use one servo per aileron if possible. Mine is set up for pattern and I want the limitation to be my skill (or lack of it), not the plane.