For anyone who is a fan of Colorfabb, give me a shout. My company has a product similar, but it's manufactured in the US and all colors are almost always in stock, unless we get a monster order from a University. In fact, I can send you some interesting comparisons done by 3D Matter that breakdown both of our filaments, as well as RepRapper. I will say, while we topped both lists, RepRapper certainly had a better showing on the PLA tests than their ABS. Between ours, Makerbot, Esun, FormFutura, Village Plastics and RepRapper, RepRapper suffered the lowest scores on the ABS side. Esun scored send to lowest on the ABS side, while performing right in the middle on the PLA side.