I was trying to do some composing with a friend last night and had trouble doing a simultaneous track 2 & 3 recording. We were both playing guitars with one plugged into the input and the other into the aux. I couldn't get much of a signal through the aux, though. The levels on both the input and the aux sounded great until I started recording. Then the volume of the aux dropped way off. Is this just because the aux is a low gain input? Anybody else successfully record two guitars simultaneously? Thanks for any help.