We have auto-level, but it lifts the rig so high, it feels like it will topple over. Ours works with two jacks at a time - front two, back two, left two or right two.
My technique is to run the front and back pairs down until a jack touches. Then I go outside and see what needs doing next to get all four touching the ground.
Once that's achieved, I then go for the minimal amout of extra extension that will get me level. I have two stick-on levels close to the driver's seat which I installed after getting the rig level on my driveway using a torpedo level in the bottom of the fridge.
If it takes a lot to get level, I'm not shy about asking for another site, or even going elsewhere.
Frank and Eileen
No longer RVers or FR owners