Riding a sled is a great workout. The last trip I went on, we got two sleds stuck in some crap snow. I have never seen anything like it, it felt like you were swimming. It was light pellety snow so the sleds had nothing to push against and more than 6' deep (that was how the second sled got buried, it had enough track and power to cut through anything thrown at it to that point, so it tried (unsuccessfully) to cut an exit track). Needed to shovel a path all the way to the ground back to the trail. I think we were in there for more than four hours.I've never ridden a utility sled but all I know is those Titan's seem HUGE. You ever manage to get one stuck I hope there's a crane nearby. Give me a month and I'll have a rough idea on what I think of the Axys chassis though.