I'm an F-150 owner with with max tow and I've run the numbers everyway but loose and I keep hitting a limit at 6500 because of tongue weight. I can't give you experience on the half ton because I'm sticking with my popup until I upgrade the truck or bite the bullet and buy a small Class A or Class C.
But, I have crossed the Rockies towing this PUP with a prior undersized tow vehicle. I will never do that again! Even in rolling hills it was frustrating, even if not unsafe. I was within specs but at the max - and that was without a large frontal do deal with. I won't come close to limits again other than tongue weight. I want slack on gross combined weight and tow rating. Btw, my F-150 is rated to tow 9500 lbs but I can't get close to that with a TT>