NEW! MOI Tuning System Maximum Sweet Spot and Balance, Right Out of the Box This paddle features Selkirk’s cutting-edge Moment of Inertia (MOI) Tuning System , which means your paddle is precisely weighted for improved balance and performance. WHAT IS THE MOI TUNING SYSTEM? It’s Selkirk’s new performance technology designed to fine-tune your paddle’s swing weight (how heavy it feels while you swing) and twist weight (the paddle’s ability to resist twisting on off-center hits). THE RESULT? A larger and more forgiving sweet spot. Balanced Weight Distribution: Not too top-heavy and not too light — giving you better control and comfort during play. *The MOI Tuning System is semi-permanent and comes pre-installed for optimal performance. Note: Removing could potentially cause damage to MOI parts.