I'm not an expert on this by any means. However, can there be any tests done for HGH by doing blood tests? There was a guy on XM's baseball chanel the other morning (did not catch the name, it might have been Rosenthal), that was arguing that MLB currently does not do blood testing and that sooner or later, if they want to take further steps to "clean the game up", they are going to have to. He stated that there is not to many other professions that require blood tests and the Union would fight any proposal to do this. However, he also stated, this isn't another profession and if the players are tired of having their accomplishments scrutinized by the fans, media, etc and are serious about fighting the issue, then they need to start allowing blood tests. Also, I thought someone mentioned to me that in other sports (cycling?), they take a measure of the athletes for levels of testosterone (maybe this is what blood tests do?). If the levels are above a level that would be considered reasonable (that would be naturally produced by the body), then they are assumed to be taking some form of PEDs.