Yeah, I was thinking game hauler as well. Its practicality depends on the trail. You could pack a lot of weight that way, provided you're not boulder hopping. A scree slope might be problematic. I do worry about being overbalanced and having the trailer tip you over, but you'd pack the heavy stuff at the bottom to keep the centre of gravity low. At the very least, it would save wear and tear on the knees (a growing consideration as I get older).