Since the PGA started drug testing , Tiger can’t juice like he was doing before.
I think this is probably true .... and without performance enhancing drugs he's just another golfer .... nothing special.
Kind of like Barry Bonds - when the steroid scandal broke and everybody stopped using them he promptly spent almost an entire season on the disabled list. The steroids allow athletes to play through the pain rather than actually improving on their physical abilities. Just like Bonds in his last years, Tiger can probably hit as long and accurately as ever, but he'll break down physically much more easily - so he'll never again be the machine he once was.