We have been putting together a guide on using Dual Extruder 3D printers. We would be very grateful for some input. i.e. what advice would you give to others thinking of buying a dual extruder printer, what tips and tricks can you suggest, what is the great advantage for you in your experience? what is the best way to go about modelling for a dual extruder machine?

so if any body has any view on the subject. For one is it worth it.