Originally Posted by bauerfan .
I know this is what Jan says; however, while I believe that doping was widespread from the period from 2002 to 2006 in the peloton (Michael Barry indicated on Canadian radio today that he only knew of only 12 cyclists in the pro peloton who did not end up doping during this period) different individuals have different reactions and tolerances to drugs. For example, an individual who has a natural hematocrit level of 38 would get a much better improvement from using EPO then an athlete with a natural hematocrit of 48 when the testing at the time would use a level above 50 as suspicious. Also, if one team was being favoured over another re hiding test results etc. this would of course also perpetuate an uneven playing field. The point is that doping is another variable that when introduced does not necessarily impact specific individuals or teams in the same manner.