So a typical product cycle goes like this: I design and refine a new product, print it, occasionally refine it more, print it again, post-process the print including paint, take good photos, upload them, spend some time getting the word out on my new product on message boards, and then the customers start purchasing it and Shapeways REJECTS THE PRINTS!. So all my time is wasted, my name is mud, and I look like a fool. And this has happened more than once. I'm well aware of the design rules and follow them, (thus the I get the prints first time around) but it doesn't seem to matter. So what can I do to prevent this? Are there other services available that don't seem bent on making their designers look like idiots?