Quite true. However - I'd like to see the frustration involved in making a 6DA do the following:
7-servo airplane (2flap, 2ail, throt, rud, ele)
Mix so you can fly with flaps, and still have rudder-to-aileron mix, and airbrake + ele to flap for landing configuration (the fact that this airplane WONT LAND with flaps down aside) and still be able to switch to a CROW configuration.

Maybe it can be done, maybe not. I do like being able to say "I'll just sub-trim that servo over and play with the linkage later" and still fly the rest of the day.

Of course if you fly the model, and after think about your radio and you're smiling... heck you don't need advice from anyone here.

You HAVE the right one.