That Stable Camper system looks pretty impressive. It stabilizes in two directions.
If I didn’t park my truck under the camper most of the time, I’d buy one of those. This is my ho’made wobble-stoppin’ system. It only stops fore and aft wobbles though. The camper is about 4” off the bed of the truck, and there’s not much clearance between the wheel wells and the camper “tub”, so it can’t wobble much side to side. I’m not sure about the newer Lance campers, but mine requires no support under the floor when it’s off the truck. I’ve used it like that a lot over the nearly 20 years that I’ve owned it.
:):)