Are these needed with the 6point Auto Leveling System?

Our Solitude is in the shop for the auto leveling system. For some reason, our system has never worked correctly. The day we were to pick up our Solitude, we had a few issues, one was the brakes didn't work..a wire had broken and had to be repair, and a fuse/switch in the hydraulic system blew and the jacks would not extend/retract. The dealership repaired both and we were able to pick up our camper the next day. But since then, even after trying to fix it ourselves via a phone call to both the dealership and Lippit, the auto level has never worked. We've had to manually level it every trip.

Anyway, I'm not sure that our 5th wheeler has ever been truly leveled. We've try to do it with a level and manual use of the system. With our method, we've had movement in the camper when walking. So, I'm not sure that it is normal. The tech at the dealership indicated that we didn't need stabilizers in addition to the leveling system.

Is that statement true? If the camper is leveled properly with all the jacks in the correct position, is there no movement?
Renee