FWIW airbags (like Firestone RideRite) will let you adjust your angle and support to try and find the best optimum setup for how your toy hauler is loaded. And if you decide to load it or run it differently you can adjust again.
We are in a Class A now but I ALWAYS put them on my tow vehicles (F250 SRW and F350 DRW the last time). Towed some long, heavy, strange weight distribution rigs also such as a Keystone Alpine 40ft and Heartland Cyclone King 44ft with toys.
They are relatively cheap, will bolt on without modifications, and give you something else to play with in trying to get your whole set up how you like it. We never regretted having them.
One more note also, if you put them on I'd just do the outlets by the license plate to fill/bleed and skip the fancy electric/remote air pump. Once you figure out how you want them you will not adjust them very much.
Good luck!