I'm picturing a caddy standing off to the side of the batter with a bag full of bats, sizing up the last pitch and say "May I suggest the pine with the conical twist sir?"
If you find yourself in Louisville, Kentucky, you can see how they make bats at the factory. At least 20 years ago, it was already pretty automated. They put the blanks on a copy lathe and turn out bats from a template.
