Yeah, it's plugged straight into the NanoTwo servo/bind port, as the nano is ESC and RX combined I'm not sure whether a separate BEC for the servo would be possible... it would also eat into the remaining few grams I have spare, but that's the setup that's doing in the beetle.

It'd be a shame to have to use a BEC, it would spoil the reason for using the v3 in the first place.

Wait.... could I just run the power straight from the battery and use the v3 for signal? Why didn't I think of this yesterday?!