One thing doesn't make sense in the Sammy Sosa cork in the bat story. If it's such a bad thing to have a corked bat, why did he keep one of those around? Sooner or later he'd make a mistake and pick up the wrong one out of the 77 bats. Seems like a mistake that could have been prevented.
By the way, how does cork in the bat help a batter hit the ball further?