Not asking what makes guys who've run 43-mid so good, rather, what makes JW so good? To what would you attribute his success? I've always noticed how abnormally long the length from his knee to his hip is. This pic (
http://osaka2007.iaaf.org/MultimediaFiles/Photo/Competitions/WorldChampionships/41260_W400XH600.jpg
) doesn't really do it justice, although this one (
http://lh3.google.com/wim.slangewal/Rlrgk-elTLI/AAAAAAAAAJA/v1dnSIQusk4/FBK_2007_IMG
) is nice. But you get the idea.
How big a role would you say that tendon structure/alignment/strength/responsiveness/etc. play in determining someone's performance capacity--eckspeshully in the sprints? Just look at JW's tendon system--he's a freak! And look at how he pulls away from everyone from 200m on; his tendons seemingly do not fatigue. That's one of the key advantages I think he's been blessed with. Well, rumor has it he's not afraid of hard work, either.
Maybe it's just me, but I say he should rethink his whole Pookie Dookie nickname. "Giraffeman" has a ring. He could do ads with Geoffrey of Toys-R-Us fame. Anyway, what say you?