This exercise is an example of how cable work has some advantages over a barbell in that the loading curve matches the strength curve, so there's constant tension on the delts from start to finish.
The other advantage is that most of the initiation of the movement comes at the shoulder joint rather than the elbow joint. The synergy between these two components makes this movement an awesome shoulder developer.
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Bulletproof your body with this lunge variation. Perform alternating lunges while holding the weight on one side only.
Here's a video from one of T Nation's boot camps. In this intro, Coach Thibaudeau reviews several awesome training techniques.
Now it's time to take a closer look at the smallest functional unit of training parameters: the repetition. If you build your repetition quality, you'll reap more gains from your workouts. That's definitely a good thing!
If your deadlift is stuck, you need more than a new exercise or technique cue to get it moving. You need a system.