Good question David. No, you do not have to adjust your shoulders for the slope, but you must pre-set your weight up the hill (and keep it there during the swing), and play the ball pretty much off of your front foot, so you’ll be able to rotate completely. On this kind of shot, you get what you get as far as distance. Fight the feeling to let your weight shift to the downhill foot on the backswing or you’ll be in real trouble.