My son and I used one on our last elk hunt. I took a bull too far away from camp, and about 600 feet or so lower then was prudent. My son was only 11 at the time, and bringing it out, even by quarters was wearing me down pretty darned quickly. We fashioned a travois out of some saplings, braced it with a couple of poles at the bottom end. I was amazed at the difference. I pulled it over small bits of fallen timber, rocks, etc. I'm pretty sure it saved me from a cardiac arrest. We went back to where we got the elk about six months later, and it was also hard to believe that you could still see the scrapes in places where the travois was dragged.