Marion jones said she was given steroids by her coach, Trevor Gramham, starting 1999 .she ran her PR in 1998, another Athlete supplied with drugs by Balco, Tim Montgomery ran his PR years before. Even If they did dope before this how come these athletes didn't see a massive PR. Victor conte is a P.E.D expert he gave them the EPO, HGH, testosterone and established efficient doping calenders to dodge tests. None of the Balco dopers (from the 2000 Olympics) saw a huge PR after being supplied new drugs and put on advanced programs. What is the explanation?