Mine is campgrounds with the parking spots not even close to being level. Despite having taken the time and spent the money to develop the property, they leave the parking spots hugely out of level. Most motorhomes only have about 8 - 10 inches of jack travel left after the pads reach the ground. Over a span of 40 feet, you need have a drop not exceeding this amount. Really, it should be closer to 3 inches. It the drop is to the rear, you can easily lift wheels off the ground to get level. Of course, this is a no-no. State parks seem to be the worst offenders. I guess they were made for trailers which have a greater fore & aft ability to level (just by raising the tongue).