Well, if a ball is hit HARD and has the same net clearance as a HARD topsin shot the ball will land in the fence. Vice versa, the ball's in the net. Either way, I don't find hit harder to block back the ball on a hard hit shot. The topspin shot would make it easier to hit on the rise, but if you're just looking to get it in play and not think about diversity, it'ts the same.