Additionally, the RH1 doesn't require several menus to be accessed in order to go to "manual level adjustment", it can be done on the fly. With my M100s it takes me-and I can do it very quickly, at least 10 or 15 seconds to set it up. Since I've gotten my second deck, I just get it set up for "manual", put it on hold and lock it. Then when I'm at the end of disc#1 in deck #1,I can just swap the input cable over to deck #2,unlock it and unpause it..with the same input level already set. That way I cut "disc swaps" down to about 4 or 5 seconds. Theoretically, I could continue to flop decks and run til the batteries died..not too bad.