Midwest .40 Corsair
I too have built Corsairs both ways, but will probably build most future Corsairs with 2 aileron servos. Both setups can weigh about the same, and have pros and cons. Biggest advantage to dual servos is simplicity: they are an easier installation and easier to maintain/ adjust. With the (low) cost of todays servos, cost should not be a factor. With a computer radio, it ia also easy to program aileron differential with 2 servos.