If there is room for a dual print head, why would cutting it in half take up more room? I really don't know... just asking. If the head is parked off to one side, it wouldn't be dripping on the part. Also two different colors coming out of one nozzle is going to mix the colors...

I think this is being way over thought... Putting moving parts in the extrusion path sounds good but with the added clearances needed for this to work, there will be a path for the molten plastic to gum up the path and then when it freezes on cool down will it ever become unstuck? Now, remember I do...

I also pulled the trigger an a M2 Kit, My main reason was, one, the build quality, and Two, the community that helps support this printer. A little over two weeks to go.... This is killing me already... LOL