For any new pilots following what Max and Jim are doing you have to keep in mind they are using a higher channel computer radio and not a small four channel radio. Computer radios have mixing programs and they can assign channels to different places to do different things. More channels gives a lot more mixing options.
Max is using a 10 channel Futaba as I recall. I use an older 9 channel Futaba. I think, that should be a big THINK, Max has an extra P-mix or two more then my old radio?