Awesome. Whats the max temp of the nozzle? With the dual heads you should try printing with HIPS. It dissolves in Limonene. so you can do something like this:
seacans.com is the cheapest for filament and they are local but it's wound poorly so if you are not watching it can cross over and make a not cause the pint to fail. MG Chemicals and Bot feeder are both suppose to have high quality filament. MG is made in Canada and Bot feeder is made in Taiwan.