Yes, the Blue Ox SwayPro does use chains to tension the spring bars, which unlike a friction sway control device proactively maintains the trailer in line with the tow vehicle utilizing the camber design and spring forces. The friction sway control appears to just dampen trailer movement.
When I visited the ReCurve R3 site, I was surprised that the company was claiming as a benefit that “The sway control can easily be turned completely off in dangerous or icy road conditions.” It suggests to me that the friction sway control that just dampens movement may be an issue in varying conditions. Why would you not want to have sway control during all conditions? I don’t know about you, but if it is starting to get slick the last thing I would want to do is to disable the sway control ability of my hitch and have the possibility of the trailer wandering behind the truck when it is slippery.
The SwayPro is recommended for use in any weather and road conditions. Traveling primarily in northern Vermont, New Hampshire and Maine with some steep winding roads that are not always in the best condition, I have had a bit of extra confidence using the SwayPro.
Speaking of extra confidence, Blue Ox offers a lifetime warranty on the SwayPro and after I had installed the hitch, I appreciated receiving a call from Blue Ox to follow up with my purchase and make sure I didn’t have any issues.
I believe that the ReCurve R3 controls sway and is a good value, but I think I will stick with my SwayPro with the “chains”.
2019 Micro Minnie 2108DS