Ball Above The Feet
To execute a shot when the ball is above your feet, begin by moving the ball back in your stance. The more severe the slope, the farther back the ball should be positioned. Also, the more severe the slope, the more the ball will hook to the left, so adjust your aim to the right accordingly. When you assume your setup position, make sure you place more weight in the front of your feet (to help stay balanced and prevent falling backward), and concentrate on keeping your chest on the hill during the swing. By trying to keep your chest moving over the hill, you'll be more likely to maintain your spine angle. Make sure to swing from the inside, or you'll lose the ball way left.
When the ball is above your feet, the tendency is to go way left. Compensate by making sure you aim well to the right.