leg press is hugely abused, if its not deep and under control, followed by a nice push and squeeze, the weight is too heavy
the thing is, you can actualy do these full range of motion and show off with a few extra plates and look as tho your doing it propperly, but the only place you will feel it is your hips etc, i couldnt care less how much i have on, as long as my quads are smoked afterwards