I should have a Kyosho Mini Inferno ST here in a few days, and I do plan on finding a way to make the A123Racing cells work. I may have them make me a custom 2s saddle pack. Considering 2 of their cells are less than half the weight of a 6-cell nimh pack, I don't think weight will be a concern once the brushless system is in it :003:
The only concern will be the lower nominal voltage and mounting the cells themselves.
I probably won't get to the project for about a month, but I'll take some pictures when I get the ST in, if anyone's interested.
Joe
Electronics run on smoke... if you let the smoke out, they stop working.