Okay. I am officially hooked on the extremely low tension in my Bio 100! Tonight, I played in one of my singles leagues. My opponent was a guy that I normally play pretty close. I have always won the matches, but is is usually 7-5,6-3 or the like. I have even dropped a couple of sets to him in the past. Tonight, I whipped out my trusty 30#er and proceeded to whip butt. I was able to get back almost all of his first serves, just by getting the racquet on the ball. I also had the increased topspin on my ground strokes that has come with the lower tensions. He had a hard time dealing with it. Long story short ... double bagel. I love this low tension!