if you are right handed, it is really hard to get the ball to be both behind you and to your left so that you can apply the top spin you play cross court. and trying to play it parallel makes the angle very narow, making it a risky shot. that is why it is not recommend to a right handed player to play the rulo from the right
You apply the top spin so that 1. the ball comes down over the net as quick as feasible and 2. so that the bounce off the side wall / fence has more effect. Also, its more effective to aim for the post between the glass and the fence, as here you have more angle and the opposition wont know if it will kick up off the glass, or the fence and this makes it harder to defend against than simply going for the fence every time which has a more predictable element. This shot can of course also be mixed up with a bandeja down the line to completley fool them, as its never a good idea to repeat a shot too much.
Accurate. And the better the level the more a player aims closer to the net on the fence. Also I believe you mean gancho down the line. But you’re exactly right 👍
