Having watched a certain rider on the track and in tt's he never seems to sit in the saddle but on the nose of it (watch Paris Nice final tt up Col d'Eze), this may be to get his very aero position around the UCI rule that the tip of the saddle should be 5cm behind the vertical line of the bottom bracket, his bike will be within the rules, but by setting his position (saddle height/correct leg extension) on the tip of the saddle he has effectively moved the imaginary tip of the saddle in front of the BB, allowing him to ride further forward which in effect opens the hip flexers up, which allows him to get in to his very flat aero position. I think a few other teams should look at this for there own riders! Saddle height taken 2-3cm back from tip of saddle is very differant than that taken from the middle of the saddle.
These are just my thoughts and observations on this and i could be totally wrong!! But a lot of teams could learn alot from what this certain rider on their very non aero riders, but it doesn't mean that they can get in to that position!
