New tow vehicle hitch set up questions

One other thought I have. Sumo/Timbrens vs airbags. The fixed rate springs will always be the same, unlike airbags that change every time you add/remove air, and in a 1/2 ton truck would be the preferred method instead of bags. This way when towing, your hitch setup is identical each and every time you hook up. Most guys put airbags on because they don't like the "sag" with a trailer hooked up, but the truck is designed to sag, so that when properly hooked up it is level along with the trailer to give the best in handling. Raising the rear with a tow load changes the geometry and can induce poor handling. If hauling a lot of weight in the bed however, and not towing, then airbags are handy to have.

They serve a good purpose, but towing is not one of them.