I was waiting in the checkout lane of a walmart and picked up a Mens fitness flipped threw it. I saw an article on the form of bent over rear laterals. It was saying having your hands pronated grip is more effective at targeting the posterior delts. Using a grip where your palms face each other, the grip I have always used and always seen used, targets the medial delts more. Is this true? I tried doign the movement without weights and it was hard to feel a difernce.