My one man band "live" experience has been limited to performing in front of friends in my living room so far, but I do really enjoy my rig. I use the boomerang III in conjunction with an mpc studio, and I run a kaoss pad through the effect sends of a mixer to feed in different signals for looping or use as an external effect. All three devices are synced to the same midi clock, and for me, that's really been a game changer for consistently pairing loops with beats and samples. I run a bass through the right output jack on the boomerang's output and it records separately and can be fed into its own amp. If I don't have a bass around (mine was stolen and a friend is letting me borrow one) I use a pitch-shift pedal and play bass lines on guitar. I often try to alter my guitar tone to sound like a synth or bass synth, and I use other pedals to change the characteristic of the sound to help things sit in different places in a mono mix. I'm currently GASing for some nice hardware synths to run through the mixer and kaoss pad. This setup is very versatile and a blast to compose extemporaneously on, and I think it will translate well live in the future, though I'd definitely replace the mpc studio with a hardware only unit if I played out regularly, if only to avoid destroying my laptop.
