Why does everyone say not to chop down on the ball for slice, that it floats? All the top players are hitting floating slices quite regularly, Murray, Federer, Henin, on youtube you can see how much they chop down, its almost vertical high to low. They are getting a lot of spin on the ball and no pace, the ball just dies. Federer and Murray use it more than others. They also use it as a rally shot, so its not necessarily because they are on defense.