Drewd wrote:
You can't dope on Methylhexamine, Oxilofrine, Caffeine or any of other the bullcrap stimulants ...
No, but if you get tested with one of the banned stimulants (and caffeine is not one of them), it shows that you are prepared to break the rules. Now, why would anyone stop at methylhexamine when he could be using something more potent?
Also, drawing a line at 9.90 does not mean that the majority of 9.95 or 10.05 runners are clean. The line means the absolute limit for a complete freak - anyone who is less of a freak has to dope to even come close to the line (and 99.999% of humans would of course not get close even on drugs). And anyone who crosses it has to be not only a freak, but also dope.
In a sport where drugs are both effective and prevalent, the top performances are going to be achieved on drugs. That's as close to mathematical certainty as you will get.