Having a large sale area MH and Trailers are affected by the winds. When I bought my Class A years ago I also noticed the rocking and rolling and wandering in winds and realized allot of it was driver induced, me reacting to the normal movements of the coach. Once I realized this and quit over reacting to the movements the driving became much more enjoyable and far less work. In my case add-ons would not have helped but keeping my elbows on the arm rest so my body movement didn't get transferred to the steering wheel made a world of difference. Just something to consider along with a cold gin and tonic at the camp ground or truck stop.
Jake my sidekick (yellow Lab)
2017 RAM 2500 CC 4X4 Cummins Diesel
2016 Flagstaff 26 FKWS
AF&AM of Idaho