Are 'Hot Bats' Too Hot to Handle?

Some Claim Bat Rolling Is Just Plain Cheating

High tech composite bats are composed of carbon fibers and—like your own muscle fibers—stretching makes them more flexible. That greatly improves the bat's “trampoline effect” when the ball makes contact, resulting in increased batted ball speed and distance—up to 40 feet, to be exact.

The preferred method of stretching is to place the bat between two rollers and apply pressure—a process called, logically enough, rolling. But is it illegal?

Although the Amateur Softball Association of America itself rolls each bat prior to testing its performance, the practice is highly controversial. Read more.