The top tube is 6cm longer than the seat tube. I tool some ideas from Moser's bicycle. Deep Drop and stretched out. I also figured in the dimensions from the TT frame I build as well. I think I could have gone longer. we will see. It's uncharted territory. Why build a bike with geometry for all around performance, If your building it for yourself, build it for a specific purpose.
The idea is to get a position a lot like this. Moser was KING of optimising the postion. If you look at my bike the drops are right above my tire.
Ahhh . . . the Surly dropouts . . . they are what makes the whole fixed gear to geared transition possible. Great Idea.