Yes, if this configuration is correct, which I believe it is since it has been working great, is that I was distracted when I was connecting the batteries and just tried to put both legs of the jumper onto the same battery. The sparks and smoke was pretty exciting and I didn't have the presence of mind to double check what had happened.

I noted on one of your posts a couple of weeks ago that you were promoting a D6 contest. Did you make it to Albuquerque this past weekend? I was one of the two Phoenix guys there.