Wilson introduces new FX Quad Shaft technology in several frames for 2009, which hollows out the throat of the frame for added stability and lighter weight. [K]arophite Black-an evolution of Wilson nCode technology which utilizes a new structure incorporating additional bonds between the SiO2 and graphite molecules on a nanoscopic scale, resulting in more feel and a stronger, more stable racquet. [K]onnector-2 external wings molded into each side of the hoop to increase dwell time of the ball upon impact, providing greater control and comfort. [K]ontour Yoke-New frame cross-section shape that enhances stiffness at key stress points for improved torsional stability. [K]ompact Center-New shortened yoke design that improves handling, maneuverability, and provides additional feel.