So after the afternoon with this thought I am left wondering if it is possible to just daisy chain MMU2S units. like 6 MMU2S units. 5 feeding one that feeds the extruder. 25 filament potential. All controlled by one mainboard. This setup would require careful planning and building to keep all PTFE tubes as sort as possible. But how awesome would that be? all different types and colors of filaments. That should open the playing field on what we can make with our printers.