Start: Start as you would for the elbow-in version, but hold a lighter dumbbell with an overhand grip. Your arm should hang directly below your shoulder rather than in front of it. This position shifts work from your lats to the rear delts, rhomboids, and mid-traps.
Finish: Keeping your forearm perpendicular to the floor, pull your elbow straight u until the dumbbell is as high as you can get it without altering your torso position.