I have a Screw, 6.5ft, powerboost 3.5, max tow. Haven't towed yet (waiting for 1,000 miles) but as soon as I'm out of break in, I'll be towing our mini excavators and skid steers occasionally. The heaviest one I can pull without going over the rating will be about 12,000 pounds with trailer (max rating with powerboost is only 12,400 lbs). So with me, the stuff in the truck, and the trailer, I'll be at just about 100% loaded. I'll be sure to let you know how it goes.
I was looking at super duties, but I'm only looking at pulling that kind of weight maybe 3-6 times a year so it didn't make sense to me to go ¾ ton.
