Mann didn’t have the answers, he just had the model. He said the science will back it but that will be a few years away. It was one of the most informative seminars I have ever been to.
I have some more scratch notes . . .
Rear block should be steep angle. More of a horizontal push.
Front block should be pretty much at 45. Optimal angle of vertical/horizontal forces.
Acceleration mechanics mimic Max V mechanics in that the pushes are considered incomplete strides.
After the initial push (first step) the stride rate is consistent throughout the race (longer GCT’s and short flight time to shorter GCT’s and longer flight time).
There is zero correlation between reaction time and winning the race.
In order to hit the positions of an optimal block start, the forces required are about 2.05% of your body weight.