Athletic Arm Action: A fluid and quick arm action gets into an effective position at foot strike, a primary contributor to current velocity and a strong foundation for future development.
Controlled Tempo & Balance Point: The initial phase of the delivery, from wind-up to the peak of the leg lift, is well-controlled and balanced, giving a repeatable, solid start to the kinetic chain.
Glove Side Disconnection & Pull: The most critical area is an over-aggressive glove-side pull. This initiates a chain of flaws — an open stride, premature shoulder rotation, a severe head pull, and momentum leaking off the target line — hurting both command and power.
Inefficient Front Leg Bracing: The lead leg lands with a bent knee that doesn’t brace firmly through release. This soft front side absorbs energy that should transfer up through the trunk and into the ball, limiting peak velocity and creating instability.