"Things that we key during drive phase, 0-40m….each stride gets uniformly longer; each stride gets uniformly faster, ground contact times lessens each step; air time between contacts increases uniformly; total body angles to the ground change 8-10 degrees each successive stride."(Dan)
Didn't I already say that?
"If you are accelerating properly (each stride progressively increasing in length and speed; direction of force changing from horizontal to vertical), your torso should raise naturally as you move throught the accleration phase." (JJ)
Must be a glitch in the matrix…