Very well thought out post. I agree with both genetics and environment factors. I think the main issue is more of safety. Yes, there are holes in the system like with the EPO case but perhaps they're looking at it from a bigger view like focusing on the bigger fish. If they allow the use of PED, then most likely a lot of those managing the athletes would push them to take PEDs. Sure, they can say no but I don't think they're "allowed" to say no. Like how some (college) athletes who get caught ultimately say it was the coach who pushed them to it. The "even playing field" is probably just a good front/face that people would accept and very rarely think much about. After all, who doesnt like "fair"?