Just saying that if you had access to a scale and adjusted everything perfectly you may find a stable setup. In the real world many don't have reasonable access to a scale that's where you just have to try your best using the fender well measuring method which really should get you close enough to be stable. So let's say you have it setup perfect and head out to the campground, when it's time to go home would you have to repeat the process over again? I'll shed an easy 600 lbs in water, food , and fire wood. Head over to the f150 forum and read the thread I think is named "Dangerous suspension" Maybe Ford found a problem and increased lateral stiffness for 2018 which are the new frame and axle improvements. It's still a very light weight truck for the heavy towing ratings it's given, basic physics says a heavier truck will be more stable.