+1. I was experimenting with this setup last night. I basically setup a default Ensemble with each instrument (mono) dedicated to a midi channel and a corresponding default Multi Patch. In the ConFig menu I setup Ins1-3 to the 'L' VA, and Ins4-6 to the 'R' VA. Simple sounds is the key to blend the mix, otherwise you'll get frequency clash. Using the Filter helps, but you only get a single Filter per SID chip/3 oscillators.