Lack of Hip-Shoulder Separation: The most significant mechanical flaw is the simultaneous rotation of the hips and shoulders. This prevents the creation of torque, limiting velocity potential and placing greater stress on the arm to generate force.
Postural Instability and Direction: An early and aggressive pull of the head and glove-side shoulder causes significant lateral tilt and pulls the body off the direct line to the target. This negatively impacts command and balance.
Inefficient Energy Transfer (Kinetic Chain): Energy is lost due to a non-bracing front leg and a late throwing arm. The arm is forced to ‘catch up’ to the prematurely rotating body, which is an inefficient sequence that increases injury risk.