Had a couple hits with a trainer/coach to a fairly well known ATP Pro. He seems to think there is lots of juicin' going on out there on tour, and that it is far more prevalent amonst the claycourters. Also suggested that a US player could be the American king of the juicers, but they dont bother with him because of his drawing power. He was saying how hard it is for his guy <who he made a point to say is 100% clean> to compete against some of these guys who can run forever and never seem to get tired and then they can come back as strong the next day...he says lots of guys train just as hard. Evidently being able to hit balls all day on clay is not only about being fit, and seems to be more a matter of chemically induced endurance than talent. I'm not intersted in starting a fight or flame war or argument with this thread..i'm just passing on info from a good source who i will not reveal.