Concur with pitch.
I have to get out of my drive and in the flat before installing the load bars. I failed to properly fasten one and lost it along the way from home to campsite, about 70 miles, over half interstate. Found it missing during set up. Didn't notice any difference while driving. Going home, I just used a basic ball mount vice hassling with the WDH heavy hitch head. There were noticeable winds on the interstate so I tried to limit my speeds 60-65MPH. On the way there, I was driving closer to 70 to stay with traffic, pushing 75 on the downhills.
I was concerned with a single bar putting a twisting force on the TT A-frame, WDH assembly, and htruck hitch/frame. My sway control is dependent on the load bars so I just drove a bit slower.
