One other thing that would be impossible to put on the same ''level playing field'' for every athlete, other than genetics, environment, ''mental toughness'' and the ''will to win'', is the instinct of eye-hand coordination.

Maybe Barry Bonds added a couple of yards to the balls he hitted, and maybe he losted speed due to an increase of muscle mass, but one thing is for sure: steroids never helped him with timing to hit the ball in the first place, which is a condition before sending it as far as possible and running the bases.