We cannot disregard the type of training he does in order to be able to maintain the .85 until the very end. I would probably look into that first. But I guess the truth lies in how his training system is maximizing his natural advantages (physical and biomechanical etc.). However, I don???t think a tall-sprinter-dominance doctrine is born thou; it will only last until the next short guy will blast the 100m faster than anyone else.