The Valvulator, in front of the POD, is supposed to make it more realistically tubey, and give it better dynamics. I've never used one, but I haven't heard of anybody who didn't love it (except for those who have never played a real tube amp before). Plus, it has 2 outputs, so I could run 2 amps if I so desire :D ! Uh oh! more idea's :eek: hmm.... Is there such a thing as a bypass pedal? Lets say I'm running the POD and the RM preamp...........wait, wait, I just remembered I already have an a/b box....he he he