I also have to agree with the video. Only thing is they didn't show or talk very much about a LB SRW F-350 which is what I have. I had the truck before the Voltage & pulled my 03 34" Teton which is rated at 14,995 GVWR. That is under my 15,500 tow rating. My Voltage is rated at 16,500 GVWR so yes I'm over. I do have the camper package in mine. I also don't load mine to the max.
I sure didn't have the $ to get rid of my 2012 SRW F-350 & buy a dully. Oh & I've towed a 5th wheel trailer for 16 years now with SRW F-250 & 350. Have I had sway problems yes in heavy side winds. How did I cure it........... Just slowed down.
Would a dully work better for me yes. Do I have the $$ to buy one NO.
Oh when I bought my 2012 I asked my wife if she wanted a dully answer was NO. Truck was her daily driver for work. I'll take a happy wife over a dully any day.