That is a lite camper for a 1 ton, as you found out you are not even contacting the overloads so you likely do not NEED air bags. As mentioned the over load extenders, in your case, would be the better option.
You have a couple of options;
* You do need to maintain ~ 10psi min to prevent damage to the bags (less psi = less sway also)
*install overload extenders in addition to above
If I were you, I would add the overload extenders and keep the bags as they will still be helpful side2side leveling.Usually Folks are over loaded and need suspension aids, in your case you are too light and not contacting the overloads. This, in combination with too great psi in the airbags, is likely contributing to sway. Add the overload extenders,start with min psi (10 psi one side, and more on the other if needed to level side2side. At vey least 10 psi both bags).
Good luck, Bill