it can make you swing the bat faster but it doesn't mean you hit better
the bat is faster
You take a wood or metal rod then form it in to a bat shape. Click on the 'How to Make a Baseball Bat' link below to read a simple explanation of how to make your own baseball bat.
DeMarini brand makes a youth baseball bat that is -5 size.
You cant really test it accurately, but for the info, the aluminum bats can hit a ball harder, faster, and farther.
Yes,the material has an effect on the speed of the ball.Actually,the speed of metal bat is faster than wood .
Do 30 push-ups before you bat!
Paper
Basically, you pick which ever bat feels good for you, make sure that the bat is a good sized for you, and then you are ready to play baseball.
Why would a baseball be hitting another baseball?
Actually on the show Sports Science they proved that when you swing with a weighted bat it actually messes up your swing mechanics because it uses the wrong muscles.
metal also known as aluminum