I think it all depends on the specs of the truck and where and what you are towing. Limited elevation change and not much cargo a 1/2 ton should be fine. But if you haul a lot of people and gear you start to max the 1/2 ton out. Assuming you have 10k+ of tow capacity that is not an issue. Payload can be the issue. If I have an 8k pound boat and it is weighed properly you have 10-15% of tongue weight (800-1200 lbs). A half ton has around 1700-2000 of payload capacity that leaves about 1000 lbs for people and gear. 4 adults and a couple of coolers is close to max. I ended upgrading the truck when we went to a SL. We occasionally camp with a weeks worth of food, beer, ice and stuff. I was over capacity by a large amount.