Heavyweight Overload Training BatHeavyweight Overload Wood Training Bat Strength that transfers. The Heavyweight Overload Training Bat is trusted across professional clubhouses and serious training environments for one reason it works. Built by adding approximately +4 ounces to the length of your bat, this bat maintains the profile you trust while increasing load to build strength, connection, and intent. The added mass forces your body to move efficiently, engage the lower half, and