One aspect of the address position which is so often overlooked is posture. I am going to turn sideways to show you what I would recommend for perfect posture First, take your address position and stand up straight. Then bend forward from the hips, not the waist, because the waist puts you in a slouched position, so bend from the hips while keeping your back straight. Then take a deep breath and feel your shoulders expand. Keep your shoulders back, your back straight and feel as if your butt is out a little bit. From this position your arms are able to hang very freely. As far as the legs are concerned I would like to see the knees with a slight flex, not too bent and not to straight, just ever so slight a flex. Remember, golf is a sport so you want to be in an athletic position. You want to feel the tension and the weight on the thighs of both of your legs, so now you are in an absolutely perfect position to pivot and make a fluid golf swing. Just remember to keep your arms very soft and passive so that you are able to swing the golf club on the proper plane.