I had the Andersen on our Cougar 24RDS for a few years and then used it for the first six months with our new Paradigm 295MK. Loved it on the Cougar with the Curt Rotaflex pinbox, smooth as silk towing. When we put it on our Paradigm with the Helux pinbox, we had a lot of very uncomfortable oscillations going down the road. I don’t think it was the fault of either the Andersen or the Helux independently, rather I think it was the combination of the two together. Hard to explain without pictures, but the Helux has a pivot point with a shock/spring in front. The Andersen receiver mounted on the pin (in my setup) sat further out in front of of the pivot point of the Helux than its pin. I have no data to back this up, but I think the Andersen attached to the Helux created a longer lever arm off the pivot point that translated to a magnified feeling of oscillations in the cab as we went down the road. After several trips with that setup, I had enough and put a Gen-Y hitch on and that solved my problem.
In hindsight, I should have tested it with the Andersen receiver flipped 180° to point toward the rear, and therefore shortening the lever arm, to see if that made a difference. I have no regrets about switching to the Gen-Y—that thing is fantastic—but the scientist in me wishes I had tried flipping the Andersen around first.
Regardless, the Andersen is excellent on the right pinbox, I just don’t think it plays well with the Helux. If you have a different pinbox, then I highly recommend the Andersen.
Edit:
@JAM1263 After I re-read your post, I see you have the Rotaflex. The Andersen is a great choice with that pinbox. Highly recommend.