Jasper was already a little tired when we left, but he did a great job. He spent the entire walk looking at the trees, the street lights, the sky, etc. He was taking it all in. He controlled his head really well, and only as we were turning into our driveway at the end of the walk did his head start really bobbing ... but his eyelids were also closing. Drew said the backpack is really comfortable, and he's looking forward to more walks with Jasper to train for his backpacking trip this fall.
Here is a quick video from our walk. Warning: it's a little bumpy b/c I was walking along side them to take the video.
Look at those eyes!