hrotha said:
Can you do it? Of course you can. Why not? Of course if you haven't been caught or at least had a scare it's not very likely that you'll find an incentive to stop, but hey, it can happen.
Now, can you do it without being detected by the biological passport?
Yes, without a doubt. A WADA lab may detect changed values, but it's up to the UCI to enforce and that's not going to happen.
Two possible scenarios here:
1: Hypothetical rider's values return suspicious and stops doping. I'm reminded of levi's UCI recommended 'vacation' for suspicious values.
2: Hypothetical rider's values are negative and stops doping.
Neither is an Adverse Analytical Finding event. What's the UCI going to do? Probably nothing regardless of your stature inside the UCI. That's a big maybe though. Look at how some Operacion Puerto riders were chased all over the world for years and others went untouched.
Imagine if they started announcing findings on riders whose values did not generate an AAF yet the values decrease. That kind of action generates many, many more questions than the message, "See how great the bio-passport is? This rider's non-AAF values went down too much!" It would be a great opportunity to shake a rider down for some money though.
Come to think of it, not doping doesn't produce super-human efforts on mythical climbs for TV consumption, so the UCI is not going to encourage clean racers.