The Yonex E-Zone Xi 115 offers tremendous power, ideal for the player seeking pace. With a headsize of 115 square inches, the substantial sweetspot offers maximum forgiveness. The new Xi technology (Extra Isometric) expands the sweetspot towards the top of the frame and is a upgrade to the E-Zone technology. According to Yonex the Xi technology provides more power with less impact vibration. Our TW playtesters noted ease of power with the head heavy balance and open 16x18 string pattern. Off-centered hits are more forgiving as the Quad Power System provides a larger sweetspot. Vibrations are reduced as NEOFADE, a material the absorbs impact shock, has been inserted into the four corners of the frame. At net, we found this racquet to be quite sharp, offering crisp, deep volleys. A must demo for those seeking added power and forgiveness. Players with short, compact swings will enjoy the ease of power and comfort this racquet has to offer.