Originally Posted by TimeToPlaySets
I have always noticed this. It seems like topspin HELPS your opponent when the ball lands midcourt at the service line. It helps to reach him, and he moves less. Topspin only seems useful if you're also driving the ball deep. Otherwise, a slice is a more offensive shot, ironically.
Well, a slice that lands at the service line isn't exactly offensive either. Really, any shot that goes through the court is more offensive and any shot that brings the opponent inside the court is either defensive or a screw up. Aside from a well placed drop shot.