Keeping a light contacting pressure on your surface of choice, shift your weight to one foot and squat — but only as deeply as you can without compromising form. (thebettyrocker.com)
In the beginning as you get used to the move you'll rely on it more for support but as you get stronger, use it only for contacting pressure. (thebettyrocker.com)
For optimum tyre contact pressure, especially in the corners. (porsche.com)