Don't do the same mistake that people in LR continue to do, speaking about what I Always said.
Again, and again and again, I NEVER SAID EPO DOESN'T INCREASE PERFORMANCES IN DISTANCE RUNNING.
What ALWAYS I said, is that WITH ATHLETES LIVING AND TRAINING IN ALTITUDE, WITH TOP TALENT AND THE BEST POSSIBLE TRAINING, EPO CAN'T PRODUCE ANY ADVANTAGE, looking at the FACT that I had athletes with the WR who NEVER used any external help (also legal), and I know athletes NOT COACHED BY MYSELF who are the best in the World training in clean way.
I never denied the fact that some of the best looked at blood doping, but this doesn't mean that what I KNOW as FACTS is true, and it's difficult to think the WR holder could run faster (especially with the percentage that some researcher continue to say, like 4' in Marathon) if taking EPO.
Blood manipulation is effective for athletes who don't use high altitude training, because can give the same effect, ALSO IF WITH DIFFERENT FACTORS. With EPO ahletes enhance their Hct and their Hb, with high altitude training and permanence athletes enhance the ability to take more Oxygen from the atmosphere, something coming BEFORE the ability to transport O2.
It's useless to change a lorry able to transport one ton with another able to transport 2 tons, if the total material to transport is 0.8 tons only.
Under the practic point of view, some period in high altitude training doesn't allow the athlete to achieve the same result of a continue permanence (situation of the best white runners who improved the European records in the last 2-3 years : Sondre Moen and Julien Wanders, who improved a lot staying 250-300 days per year in high altitude).
You have the presumption to know for certain something that all the coaches working with elite athletes don't know, in spite of the FACTS that I explained above.
I'm curious to know your background in the field of elite athletics, and the personal experience that makes you so sure about a situation that NEVER was studied, and NEVER some researcher wanted to study.
I repeat again : without knowing the effects of training, nobody can speak about the effect of EPO with the best athletes.