Sorry, I'm using Pre-amp as in before the pre-amp of the POD GO chain. Specifically, it would be guitar > compressor / Sustainer > OD/Dist > POD GO > send > Sitar Pedal > Chorus > Return > Guitar out > Amp or head phones.
I got the POD GO because sometimes, depending on the song, I like the tones from the effect units, sometimes the tones from mixing my pedals and the POD GO, and sometimes I prefer the sound of my pedals alone. The POD GO was reasonably priced with an effects loop.