Received a huge package today, of my test batch of FD and FUD. My preliminary observation is that FUD is clearer yellowish. FD is cloudy/frosted. The material is strange, I won't call it flexible, but soft so that you can bend it. But not like WSF's "spring back to original position" kind of flexible. Some thin parts are actually brittle. My tiny soldiers keep breaking apart. They are in FUD. If Shapeways can have a material with quality of FUD but strength of White detail, that would be good enough for me. Here are some of the items, and some quick painting test. Models in 1:144. FUD in the left of the photo, FD on the right. The pin is for scale, which measures 38mm or 1.5 in in length. Here are two models spray painted with one coat of Tamiya fine primer. The FD clearly shows layering.