Alex, I originally ordered only the AA set, but your videos convinced me to add on the Super Bass B! I’m expecting it tomorrow, but reading the manual tonight has me confused. There are switches to turn off crew talk or signals on the B unit, but why would anyone want to do that! What I would assume one would want to do is turn off the sounds on the A to avoid out-of-sync duplication of sounds, but the only way to do that is to turn down the master volume switch. So what is the proper way to configure this set to get the most out of the Super Bass B unit?