I'm surprised you got a response Bemis223. I never received one email or voice mail reply from Roger. Ever. David would forward the emails I sent to him onto Roger (and cc me), and then crickets.
Maybe he didn't like my suggestion that someone should take a picture of the DGU prototype and post it on the website (or ask Richard to tweet it).
Didn't think that was too much to ask, to, you know, actually have proof that it's being worked on.
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