Your absolutely right about Ableton Link, this is the new way for Sync performance.
About the Mixer, i dont know if it must be inside Bazik or external. I like modular approach, Bazik is “just” a synth, that you can plug in a mixer like Resolume or other. That’s why I was thinking about a simple AV mixer with Channels and Blend modes as you say.
But i love your idea of 2 decks and a simple mixer, like DJ software. Think think …
