This topic must have hit the overload button with me as I somehow awoke at 3am thinking about it. I would suspect that the changes a racer would want overnight would be in the toptube length or seat angle. I suspect that the rear triangle & fork would already be completed. What I'm not sure about is what else could be done ahead of time. Could the builder have the headtube completed and just cut the seattube end of the toptube once he had the length and angle? This may not have been that difficult. I think some of the members were picturing a complete bike build done overnight, including all the dropouts, fork tips, raking the blades, braze-ons, etc. I doubt that is what happened. But, as odd as it might seem, I do believe this could have happened. Lou Deeter, trying to overcome sugar rush from yesterday, Orlando FL.