Skyman,
Thanks for the reply…
We spent about and hour messing with Zoom audio settings and found improvements, but never totally tackled problems with it cutting one of us out. Keeping the voice and guitar volumes at audible levels on both sides seemed to fade in and out. Maybe, just need more time messing with it. Was able to play one at a time, but more often than not the signal seemed to collide when we tried to play simultaneously.