No, not the guys who swing them, but the actual bats themselves...
Somewhere around here, I got into a discussion with others about how skinny handled bats are gonna kill somebody if they don't ban them in favor of better proportioned bats... some folks disagreed and thought it was mainly the kind of wood (maple vs ash) that causes exploding bats...
Well, it seems that Pedroia agrees it's the dang bat handles, and he makes a point of using a better balanced bat himself... less good for the physics of dingers but more good for the physics of bat control... https://www.bostongl...sQrL/story.html
In addition, Pedroia's now using an axe-handled bat... which looks just like it sounds... http://sports.yahoo....-013113798.html Apparently, Teddy Ballgame had the idea in the abstract but never got an actual bat made that way...