add airbags or shed weight?

[thrifty bill]

+10 the lack of real data here makes any advice limited. 300 pound tongue weight on a Casita? I doubt it, but hey if you get that running across a scale then OK.

Need total actual trailer weight including tongue weight, loaded. Then actual tongue weight, actual payload of your truck, and how much of the payload is consumed by camper shell, bed liner, stuff you typically carry, passengers, driver, pets and so on.

Me getting data costs about $12, then I would think about air bags or shedding weight or whatever.

[Geronimo John]

Right on Thrifty Bill. To your list add individual axle weights for trailer and TV, and an actual measured trailer tongue weight as well to focus on trailer tongue weight as well. Would likely be the best $12 ever spent.