All along you have heard Barry Bonds and his apologists and sympathisers say that steriods and other PEDs dont help you hit the ball.  Ive asserted that drugs like HGH keep your body basically younger, longer and that helps to maintain the cordination it takes to center a major league pitch.  

Finally a study has been performed that actually proves the point that steriods do help hitters hit home runs.  Its not exactly backing up my theory, but it definately shows that cheaters like Bonds and the like have definitely benifited in the long ball department from steriod use

heres a synopsis of the story

Study: Steroids boost HR totals
Posted: Friday September 21, 2007 06:12AM ET
Steroids can help batters hit 50 percent more home runs by boosting their muscle mass by just 10 percent, a U.S. physicist said yesterday. Calculations show that, by putting on 10 percent more muscle mass, a batter can swing about 5 percent faster, increasing the ball's speed by 4 percent as it leaves the bat. Depending on the ball's trajectory, this added speed could take it into home run territory 50 percent more often, said Roger Tobin of Tufts University in Boston.

the link to the full story is here:
http://www.nypost.com/seven/09212007/sports/study__roids_increase_hrs.htm