The Trilogy Rail fairway wood expands Exotics superiority in the fairway wood segment. Focusing on forgiveness, the Trilogy delivers easy-to-hit, perfect shots from any rough, firm turf, and the worst lies.The revolutionary, large, diamond-shaped inner rail performs as a rudder guiding the clubface into a square position at impact while minimizing divots for easier-to-hit shots. The unique Trilogy sole features two outer rails and one inner rail that helps players hit perfect shots from any lie. The outer rails move more mass to the rear heel and toe, producing a higher moment of inertia for enhanced stability on off-center hits.Used in race car design for several years, CAD frequency analysis measures the natural frequency of a selected part to make it more efficient. In golf clubs, frequency is created by the vibration in the clubhead. Engineers are then able to measure varying frequencies as the weighting and wall thickness of the head is adjusted. Exotics Trilogy optimizes the frequency results, effectively reducing vibration in the clubhead, by moving weight within the sole and walls. The result is maximum power and forgiveness.