This is kinda apples to oranges because this isn't what I would call a serious load, but is what prompted the question...
I towed last weekend with an open trailer down to a casino show. I set up the load so it just barely set the rear of my Yukon down. It towed perfect! No sway or bob, no "light" feeling front end, I thought it was ideal. One of my friends commented that I had sure "loaded that poor truck down".... WTF...
Jeff-