We have 2 sets of "Lego" leveling block sets that we use - and all that has been needed thus far. If the auto-level needs to raise the front wheel(s) off as it sometimes does, we retract all, backup MH and drive onto necessary block(s), then re-level. I would rather take this extra step rather than leave the wheels off the ground. We also carry 4 x "2 x 10" boards (each about 15" long) in our coach for extra leveling or if ground is mushy (good for jacks or wheels). Doesn't take up much space, but offers great piece of mind if needed.
You may want to also re-calibrate the leveling system which is quite simple. This may aid in the whole process.
Wife wants a near perfectly level coach when camped... so I do what I have to do!