I have a brake controller and a WD hitch, but no bars. I will be driving in the mountains from MO to MD. I have a lot of experience driving in the snow. So much so, that I know to avoid it when I can. I once pulled a full length car trailer that had surge brakes instead of electric through the mountains of PA in 6" of snow. Two words: never again.
The shortest route for me is I-70 all the way through southern PA where they got 8"+ of snow in the last 24 hours. While no snow is in the immediate forecast and they should have time to clear the roads before I get there, I will go the southern route if I have to.
RK