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Our Overload/Underload Training Pack is comprised of an endloaded overload bat, a knob loaded overload bat, and an underload bat. The target weight differential on these overload and underload weights is +/- 10-15% of the drop-3 weight of the selected length.


The end-loaded overload bat is cut to a +10-15% weight and is not cupped. The intent with this is to provide an overall greater weight while also shifting the center of mass furter toward the barrel of the bat. 


The knob-loaded overload bat is cut to be a finished weight of +10-15% greater than what would be expected from a standard bat in the selected length. There are approximately five ounces of weight below the knob, but above the pivot point of the bat during the swing. This shifts the center of mass towards the hands, providing a different feel for the bat and aiding in accelarating it through the zone. 


The underload bat is cut to be 10-15% lighter than a typical bat at the selected length. The change in weight, however, is evenly distributed throughout the bat.


The profile of all three bats, excluding the mass below the knob of the knob-loaded overload, is that of the Pro GLB 85.

Overload/Underload Training Pack

  • As each bat is made-to-order, we don't allow for bats to be returned for any reason other than an error on our part. If we processed the order incorrectly (e.g. barrel or handle finish, length, etc.), please contact us, so we can check the order record. If you find a defect in the bat, please let us know what you found, so we can investigate the situation.


    One thing to keep in mind, though, is that wood bats break. Most of the time, the breakage is caused by a ball being hit either on the end of the bat or in on the handle. These contact areas create a situation where the bat is more susceptible to breaking.


    Please send all questions or concerns to

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