|image from http://www.encyclopedia.com/video/fuuYTY0DTOk-dog-training-how-to-loose.aspx|
I tried it today on our morning walk. Zeus was fairly receptive to this technique (he is very food motivated). 80% of the walk went very well, though did make the tips of my fingers sore (those baby teeth are sharp). That last 20% (as it was mostly at the end) was not so successful, but for 8/10ths of a mile the boy was very well behaved and pulled very infrequently.
I am encouraged!