This is Off-Topic, but I'd be interested if you could clarify how James Stray-Gundersen has been an "expert on doping" before becoming an anti-doping advocate. By going through his publications from PubMed, I can find only a few research papers relating to PED-products by him at all(100% Oxygen, rEPO).Kajsen said:The point is simply that such has the system been for at least two-and-a-half decades. Expert on doping become (naturally) anti-doping experts and (equally naturally) advisors to athletes and Federations, and the like. Jim Stray-Gundersen is another such name (from the late 1990s and early 2000s in Norway. And Ola Rønsen (for 2-3 decades and still going strong). Everything might be fine, but the system is set up in a way - at all levels - that doping is incredibly easy to get away with.
https://www.ncbi.nlm.nih.gov/pubmed/?term=stray-gundersen+%5Bauthor%5D
As far as I know, he has focused heavily on this LiveHigh-TrainLow - method of hypoxic exercise and as an interesting anecdote, he lobbied heavily with Finn Tapio Videman and Inggard Lereim for the introduction of blood doping tests into XC-skiing from mid 1980s onward and supervised the first test at the 1989 World Championships.