Dave,
In your recent Kickstarter update #17 video, at approx. 0:34, you mention that the board at position 6 (S/N 202) had "failed the spec on one of the ranges". Just out of curiosity, I'd be interested in knowing what the problem turned out to be.
Also, what percentage of boards have had problems, so far. Have there been just a few identical problems or random issues?