Okay, just to drag this up again. I verified it. Here is the difference. The Nelly, is just like fet stacking, that's it. The V2.2 is much more it is a regulator (BEC) if you are familiar with them. It regulates the current to the servo as well, cleaning up servo gitter and sends more Volts to the motor and a reduced voltage to the servo.
I said that before, but I wasn't sure. But that is exactly the difference.
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