We have the Blue Ox sway pro and are VERY happy with it. We recently pulled our Wildcat MAXX 28RKX ( 33' travel trailer) from Seattle to Iowa, 2,000 miles with my 2011 Ram hemi. We were hoping to have our airride 2015 Ram Laramie for the trip but it was not delivered yet.
The hitch is a dream to use and really does a great job. Yes, you can tell when a semi going 20 mph faster than you passes, however, there is no sway and the hitch does a great job of distributing the tongue weight. I HIGHLY recommend this WD system!!!