I pull a 25 foot TT with an F-150, so I belong in the group that feels the side push from trucks, busses, and wind buffets. I would expect that from a 5000 lbs. TV and a 6000 lb. TT. As mentioned it is a really big sail.;)
I have a Blue Ox hitch and absolutely no sway or fish tail. This was confirmed when my wife followed me for over an hour, on different road surfaces, in a separate car between RV parks. Also I had no difficulties with a panic stop maneuver to miss some deer; it did however give me a better perspective on the increased stopping distance needed. :E
Likewise, a hard steer turn to the right to avoid being sideswiped on a freeway entrance produced minimum rebound. In short I am happy with my set up.
Would an F-250 be a better choice? Probably, particularly with a bigger TT but I still would not count on it eliminating the side buffeting.
