Am Pro and not Dual. One of the reasons is that, although I've never seen it in person, the thought of the print head having to make a trip to the dock - and all that purging/waste - every single layer I find quite painful. Now this marvellous scaffold material seems like a great leap forward for tricky prints but is it really necessary to use it for anything except the LAYERS WHICH COME INTO CONTACT with the part? Does anyone see a way to adapt the Gcode for a part with support so that 99% of the support is printed with part material? The printhead would just start making trips to the dock on the layers which absolutely had to have scaffold because they were touching the part. Would that amount to a worthy increase in speed and reduction of waste?