This occurred to me when I was watching a friend hit with the Wilson K90 6.1. He has very long fast strokes, good extension, and steps into the ball to drive his groundstrokes. He actually has the best strokes of the people I play with and watch locally. When I play with a tweener type frame, I feel like I cannot let loose on my swings. I am a 4.0 guy. Can anyone suggest another low-powered racquet that fits in this mold? I am currently using the Dunlop Aerogel 4D 300.