The boards are in the mix, I'll probably get them around the time of York, so after York I'll slap one of these together and see how it plays. I'll also find out if it can fit into the 9V battery form-factor. If so, I may figure out a way to mount the battery clip on the end to make it just like the battery with a tail on the other end for track power. The beauty of only having to spend $5 on the boards means I can tweak them for the connector if everything else works. Yes, I know the one silkscreen legend is under the outline of the folded down supercap, I figured I'd just leave it for this run. Also, on the 3D run, the large cap seems to merge with the 150uf filter cap. Since that will be folded over on the real board, that's also not an issue. 
On another front, I found a bargain on 1.5F 5.5V supercaps with a nice low internal resistance that works for this project, so I got a whole fist-full of them. When I can get them for $1, I figure that's time to jump.
Stay tuned to this channel... 
