I'm trying my best to hit the ball directly to the person, preferably their fh side. I feel guilty when I send it away or mishit. Lately I notice that I also feel bad when I occasionally pop the ball with excessive topspin, ie it lands uncomfortably high for them.
9 out of 10 players I play with are 3.5 or below. While I'm comfortable with them, my level has become like theirs. I can't rally or play games with the few higher level guys around anymore