agexpert,
I believe you may not know quite how the variable pitch props work. The pitch of the prop determines ur thrust. It's like a helicopters collective. Therefor if u run the motor at full blast, but have the props neutral, u won't be puttin out thrust. But u'll be eating away at ur battery pack. Ideally, I think, would be to mix the throttle with the pitch so as the pitch increases in either direction, the motor speeds up too to push the air through, while not killing the battery. This is y I believe the throttle being switched is a better compromize. U can still control ur airspeed but if ur taking it easy, u can throttle the motor down to save battery life. However, I'm not sure, hence the question. In afpd (where i learned about these little critters ) the simulated planes are just stuck at full throttle. The throttle stick controls pitch. No battery to be concern'd about there though Do u have experience with variable pitch props? As for the flaps or retractor channel, that's what the switch is on the hitec flash 5x. It's a trinary channel, not proportional. So 4 proportional channes, and 1 3 way. Hence no proportional for the throttle.
Ooo, I'm always looking for a deal. Does it come with the garbage disposel fuel thing?
-John