[Los Angeles, October 29. Image via FlyNet.]
Speaking as a veteran of Labrador-walking (scraped knees to prove it) the wraparound leash looks like a pretty good idea. That way you get to pull back against your raging hound with the full force of your torso and not just your arms.
The downside is this: you will look like a douchebag. Especially if you wear the leash with large hideous elastic-waisted shorts that stumpify your usually leggings-worthy legs.