I have a Tiffin Wayfarer TW towing a Chevy Spark. No problems with travel in eastern USA. However, years ago in a Lazy Daze I was a little unnerved in the Bighorn Mtns of WY. Plenty of power with Triton V-10 but still intense on downhills. Now older and a little wiser we have a Wayfarer and want to travel in the Rockies again. I have checked all weights. I am just under the 11,030 for GVW and well under the 15,250 CGVW at 13,200. That said does anyone have experience with a Tiffin Wayfarer in the Bighorn Mountains. I would imagine if I can travel there about anywhere else in the LOWER 48 would be fair game too.