Have a 2015 Bounder 35K. It now has 23000+ miles on it. traveled through the Rocky Mts and the hills of West, By God, Virginia. Yes, i get pushed a little bit from a semi passing. The wind can move me a bit, but I have never felt to be out of control. Nor, have I felt exhausted, from a 500 mile day on the road. I am 78 years old, with two bad shoulders from taking hockey hits on the boards. Yes, you are not driving a sedan. This is a big rig and need to treat it as such.