Yes. Biophysics has an ideal anatomical model that an engineer would use as the blue print for a sprinter. Other systems involving efficient energy use also would be incorporated in the design of the ultimate sprinter. The Kiltys, Teeters, and Reus's are as you described at a disadvantage lever-wise in the 100 meters +, but are built for 60 meters. That's not a White man curse, it's just what their (them not all whites) optimal for. Those guys would be a terror if they were good at soccer or rugby and American football as punt & kick returners, slot back 3rd-down receivers or Wes Walkers with turbo-overdrive. They are not "top-end speed" world class sprinters. If and when they break 10.00 it will be with very good "conditions." I've said it before and I'll repeat it the guys who we need to see are the tall long-legged to torso proportions with long lower-leg length. Real world models are Lemaitre-Guliyev's with the best support possible. Dave Sime, 1960 silver medalist, recently passed and was a template of a White guy with the attributes to be a 9.80 sprinter on today's track surfaces, shoes, advanced training science, and financial support. 6-4 and built like a greyhound not a short squat fire-plug. Dave Sime right side. Peter Radford on left won 100 meter bronze in Rome 1960.