Well, I was the first to respond about the computer radios, etc., and while I can't disagree with everyone else who posted after me as they all have MUCH more experience, I can say that personally I got a trainer with the option of having dual aileron servos and flaps, and am getting a second plane that utilizes 7 servos and flaps. I like the 'bells and whistles' like flaps and retracts and whatever else to make a model plane seem more realistic, so a 6 channel radio was the way to go for me.