[QUOTE=carleton;17781736
Which forces some air around the rider as opposed to having it funnel into the big scoop that is the torso area.
Wasn't the "Praying Mantis" position actually proven to be optimal primarily because it closed that scoop?
[/QUOTE]
This was Obree's reasoning for developing the Egg position. The German pursuit team tested it, and it is extremely fast on a single rider, and even faster in formation as the bikes are much shorter, allowing the riders to get closer together. Could you imagine practicing those transitions?