I’m fairly new to UAV so forgive me if some of the stuff I’m writing makes no sense ;)
I’m looking into buying the new APM2.0. I’m planning to use it in a heavily modified TwinStarII (servos in the tail, brushless, camera carrier mounted and so on). What bothers me a bit on the setup is that I have to use a Y-cable for the ailerons. That way I can not adjust them separately and I can not use them in differential mode. From what I gathered, there are plenty of servo outputs left on the APM2.0, can the software be modified to use one of these for the second aileron servo?
Have a look here.