In golf, tennis, baseball, and other "hit-the-ball" sports, players talk about the sweetspot of their implements of destruction. The sweetspot is the center of the club, where you'd most like the ball to hit. It just feels better, "sweeter", when it hits there. Technology seems to be improving the sweetspots of most modern-day racquets and clubs (remember your dad's old tennis racquets and how hard they were to use???).