FYI the rear delt participates in supination of the humerus, so do rear delt raises with your hands in the position as if you were doing barbell curls. best rear delt burn ever, i actually had terrible cramping after doing these on teh rear pec deck with my hands in this position. The medial head of the delt helps with pronation, so twist your wrist when you bring the dumbell up like your pooring water into a cup.
two exercises i like for delts.
