If you talk to the "pro's", the guys that are real serious about their RC hobby.. and I know several Pattern type pilots that are just this way, adding some sort of switching unit now becomes one more potential point of failure.

Their answer to this is simplicity. Two batteries, each into a separate RX slot and a separate switch for each battery. Period. For a normal setup, if you are not using separate channels for dual-aileron servo's (using a Y connector into channel 2 (airtronics) for instance), you will need a 7 channel RX to do all this. Four channels dedicated for normal functions, throttle, aileron, rudder, elevator. Then the remaining three for power.. two battery connections and if you use one (highly recommended), one for a voltwatch type device.

Again, the more you add, the more points of failure you add. But, there is a big difference between redundancy and gadgets.

The key is to keep it simple, yet make sure you are adequately protected... within reason. Add more and you add more weight and potential problem areas... more stuff to check out, and so on.

Remember the KISS principal.. Keep It Simple Stupid (not pointing at anyone, by the way, it's just a saying so please don't get offended. If you do, then please... get a life.. if not.. then you understand what I am trying to say).

DS.