@leppanphysiques: Reps or weight? Wrong question. The question is whether the weight you're using is actually going where you're trying to send it. On a lateral raise, bending the arm makes the weight feel 50% lighter which means you'll use more weight, involve more muscles and end up failing because you're exhausted rather than because the side delt has actually done any work. If you've been training hard and still not seeing results, comment GAMEPLAN below. The training is rarely the whole story.