RE: PowerBox or Not ?
Bear in mind that when you have a programmable Rx with lots of outputs, such as Weatronic or Jeti, you do not consume as many transmitter channels as with conventional Rx. For example, 2 ailerons, 2 flaps, 2 tailplanes would normally use 6 channels but with a Weatronic or Jeti Rx can use just 3.
Harry