I'm with Irulan, though I don't watch the races much.
I think it's always going to be a farce until they acknowledge that it is NOT about health, safety, fairness, or anything but sport. Make it about these amorphous ideals and people will feel free to violate them because they understand there's no real moral force underlying it - if there were, then the line would be drawn a whole lot closer to "natural." Outlaw LASIK, outlaw the arm pump surgery that all the moto racers get, outlaw the elbow surgery the baseball pitchers get, outlaw wind tunnel testing, outlaw metabolic testing, outlaw all of it, and only then will it be about a person, a bike and a course.
Or leave it the way it is, and acknowledge that the physical enhancement rules have no more moral force than the rules about the size of a lacrosse ball or the duration of the two-minute warning, but that those who violate the clearly defined rules will be penalized in clearly defined ways within their sport.
Speed comes from what you put behind you. - Judi Ketteler