It's really helped me with cord changes. I was "walking" my fingers onto the cords. Now my G to D changes are getting pretty smooth and fast. I've only been working on that change for about a week now. It's a little trick I picked up. If you guys try this method, I'd love to hear back on how it worked out for you. BTW, this is not my idea, it was taught to me. I'm just passing it along.
Dan