You would have to have one serious aircraft setup to need that kind of hardware. The general RC'er would never need that kind of power distribution
well I didn't make it with the idea of using it in a 40 size plane...
besides it is only 1.5" by 4" and weighs about 1.3oz...the point was to make sure all the servos actually receive the voltage they are suppose to. It is nothing more than an external power buss...not an optical isolator or anything like that.
and the 13awg on the pack was only because that is what I had at the time. but hey it shouldn't have any problems handling the loads it will see in this application.
22AWG servo wire shows very little drop over the typical distance involved in a plane until you reach the 4amp+ range. So no need to change that. but the standard connectors start dropping voltage before 2 amps and are just ridiculous above that level. true on the servos you wouldn't see those levels much at the servo but you will at the battery.