Upgraded my tow vehicle, do I still need a WDH?

I am experimenting going without a WDH with the new Silverado 1500 and my 5200 pound wet and loaded TT. So far all is well. However, I did add air bags to level the TV and TT...needed about an inch and a half lift.

“If you are under the "weight carrying" tongue weight rating on your hitch receiver,”

I am, CarringB.