Joe Ling made the first V2 mod and it work for him...Now after doing mine it is ALIVE (with an RX batt, my UBEC hasnt arrive) I cant say how good it is since I cant run further test (raining outside)...
Anyway here is the photo of my mod...
this things are small and since I was hesitant to unsolder the 4 component...i did the barbarian technique...
Used a sword..I mean a utility knife and cut them loose
verified no short...and tested it on my maxx but wheels hanging...
Need to run it more....also need to solder/short the switch...i find no use for it really after running test