For me as a sprinter, the technique cues are (this is John Smith's race modeling):
(1) Don't think in a race. React to the gun, period. You should have everything ironed out in practice before you get there;
(2) First 10 meters--drive from blocks and begin to step over about 5-7 meters.
(3) At 10 meters, look up lifting only your head and accelerate to 20,
(4) At 20m, gradually come up and GET VERTICAL.
(5) Accelerate to 50-60, then RELAX and let the speed get out.
Great stuff Coach D.
I've been thinking about sprinters who broke (or currently break) those rules, who were exceptions who could get away with doing things differently. Ben Johnson was famous for just jumping up and running (to quote Angella Taylor "Ben just jumped up out of the blocks and started running, and it worked so well Charlie didn't change it.") and Ben was doing that before he started doping. Watching Kim Collin's recent 9.93 in Bottrop, it looked like he did pretty much the same thing, he didn't perform the standard drive phase mechanics. The thing those two sprinters have in common is they are very quick, Collins can turnover at 5 strides/second. Collins also breaks the mold by apparently never doing any weight training, until this year. Calvin Smith was slightly built, relying on quickness and technique. So perhaps sprinters with lower stride frequency need to rely on using more power to the ground when accelerating, while the super quick guys can just start turning over.
What are your thoughts about this, Coach D?