I'm just about ready to install my radio, and I had a few questions.

I built the model with flaps, I'm going to use a jr 537 for those.
2 jr 537's for aileron servo's as well.

jr 507 for throttle

What do I use for rudder? I've heard of a few poeple suggesting a high torque servo for the rudder.

What do I do for the elevator? do I really need 2 servo's (one for each half?). I joined the halfs togther with the rod, thick CA, and glass tape (to renforce the wire install)
Can I use a 537 on that as well?

Rgds,
Theo Aftonomos

ps: also let me know if my intended servo tasks (aileron, throttle, flaps) will work out well please.