I think part of the issue as to why no busts during the tour is that, sadly (cynically?), the drugs are evolving and the tests to detect them have to play catch up. I hear the new, "improved" version of EPO, called CERA, takes longer to detect in tests, hence why DiLuca was just busted for using it during the Giro. It will be interesting to see how clean this tour was considered to be in a few months, or a few years.

I agree, though, it is nice to not have the distraction while the race is going on. And, overall, the riders seemed more "human" on the big hill stages, no super repeated accelerations or superman efforts that raise eyebrows (or, not as many!).