Originally Posted by DerekB

What the controversy about the ESC was...the RX 7.4 volt pack was wired into the speed control and what people theorized about this was it was feeding 7.4 volts to the motor therefore not fitting into the 3.8 volt 1 Cell lipo.

The ROAR rule is open a bit for interpretation, which is how things advance. It's legal for the ESC to power the RX, but at the end says "for only this purpose" if the RX pack was giving voltage to the motor it sort of would be illegal.

It's impossible to tech...to see if it was that they could have just ran the RX battery into the RX.....BUT

I wouldn't have done it either because there are no real rules...loop hole.