I can second that the ProPride 3P is the best hitch I’ve used.
We bought a 41’ 1955 Spartan trailer in Homestead FL, and before I drove down in my Excursion (pre-Tremor days) to tow it back to Michigan, I bought a Propride 3P to take with me in case I needed it. By the time we got the trailer road worthy, weighed and a temp tag registered, I didn’t have time to install the Propride hitch. We got on the road heading across Alligator Alley towards Naples for the night. That trip across Alligator Alley was the most challenging ever… any vehicle, expecially trucks passing me in the hammer lane, even at slow speeds would nearly push me off the road! Mind you, I’ve recently rebuilt the front suspension of my 79K mile 6.0L Excursion with new balljoints and steering linkage, new RedHead gearbox and all new F250 Leaf Springs, it was tight and handled great empty, so it wasn’t the truck.
The next morning in the Naples hotel parking lot, I installed the ProPride Hitch and I honestly couldn’t believe the difference. It went from questioning whether I was going to get this thing home, to actually pleasant to pull, even at 80 MPH through he mountains! That hitch literally removed all sway!!
In comparison to that, I also have a 26’ enclosed car hauler, which I’ve pulled both w/ no WDH, and also with a Curt 17501. Twice I pulled it using the Curt with the same Excursion with two touring Harley’s loaded in it from Michigan to Tennessee, and although that Curt hitch helped compared to no WDH, even that smaller 26’ trailer still push the Excursion w/ Curt on occasion when passed by trucks. I can honestly say the 41’ Spartan with Propride 3P pulled night and day better that my 26’ with Curt did. The Propride is certainly much more $$, but it absolutely removed all sway. I’ve since put the Propride on the 26’ (also no sway now) and sold the Curt, and personally would not go back to a trunnion (friction) type anti sway hitch after the ProPride.