Triumph of getting the circuit completed with the meter reading a steady 16V rapidly turned to dispare with the realisation that a meter reading is one thing, a car zooming around the track is another. It was that childhood sinking feeling scaled up at least 1:32 by the fact we have invited the whole world to join in the game.
After some soul-searching and phone call to Mark Anderson (our voice of reason in all such things) a plan started to emerge. At the limit of outward and inward car travel we broke the circuit and joined these two points up, this circuit worked. Then at a convenient point we made the remaining track into a loop and got that circuit going. At the end of the day we had two circuits each of approximately 210 pieces working. Tomorrow there is a plan involving 60m of wire and a soldering iron which, assuming the laws of physics hold, mean that we can recombine our two circuits into the monster we are aiming for