I have used the dual cam extensively for years with a 28 Airstream. Currently using the Andersen on a 21 RBS . No comparison in terms of sheer elegant engineering, the dual cam is complicated, and archaic. It works. But so does a tube TV. Not to be flippant, but this design is revolutionary regarding set up, effective sway control and and ease of weight distribution adjustments. I will add my current tongue weight is 500 lbs. Very happy.