Interesting that he denies use in 2004 with CSC. Not sure I believe that.
Pre EPO test, it's likely that vast majority were doping.
Post EPO test, where at least you had to time use, and micro does, perhaps the advantage were curtailed enough, and detection chance increased enough that at least some chose to stop doping.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.