I don't know if you understood what he meant. You need the main battery connected to the esc, unlike the MM. It doesn't seem right but it does work either way with the esc to rx cable or the seperate C02 cable.
Yeah, I've had the main battery hooked up to the ESC. I don't run a reciever pack, but I tried that way too. Basically it looks like I have to get the other $10 cable. Everything else seems to fail.