Stumper, Yeah when i wired my 12th up i did use smaller guage wire. Think it was 14awg, possibly 2.5mm. I usually use monster 12awg for my touring car.

You don't need monster mire for 12th as there is much less current flowing. For me this has a few advantages, lower wieght, greater flexibility with the power wires to the motor so less chance of stopping the rear pod moving, and more importantly a perfectly good oportunity to use up all that thinner wire that i have laying about