Took me a few tries (I literally own no USB 2.0 stuff, at least nothing hubbish), but it finally took after I downloaded the image and used the "Choose a File..." flasher. Voodoo maybe, but worth a shot if you only have USB 3 and it keeps failing.
Doubling my flash is a neat trick. I dare you to do it again.
Actually, seriously - thank you for this. I appreciate the ongoing support. It's kinda sad - I work with big iron, million dollar servers at work, multi-million dollar vendor support contracts - And the support from the vendor and community for a $49 toy computer (that's oh so much more than a toy) blows that "professional" support out of the water.
May your beer be blessed for seven years!