With this update to the Ultra 100L, Wilson has created an explosive racquet for improving players. At 10.4 ounces strung, the Ultra 100L should appeal to a broad range of intermediate players, including the occasional league player or weekend warrior. According to Wilson, this racquet's big power comes from three strategic enhancements. It starts with less racquet twisting at impact (stability), which is achieved by combining a Power Rib construction in the shaft with an integrated Perimeter Weight System in the head. These features are complemented by Sweetspot Channels at 3/9 o'clock, which lengthen the cross strings for greater energy return. This racquet also has Crush Zone grommets in the throat, which compress like a spring at impact. On groundstrokes, the Ultra 100L not only feels crisp and accurate, it's also faster than the previous generation, making it great for cranking winners on the run. With its Powerful Frame Geometry, pace comes easy, and there is more than enough spin-potential to bring the ball down hard. The user-friendly speed continues at net where this racquet will help you react quickly or spring into action when opportunity knocks. The Ultra 100L also performs great on service returns where it comes around extremely fast to deliver an effective combination of pace and accuracy. All in all, with its combination of speed, precision and power, this update to the Ultra 100L should enable a wide cross section of improving players to play more aggressive tennis.