We have a wheelchair lift in our RV, mounted right behind the passenger seat area. The lift only has x-amount of vertical lift. If I have to jack up the right side to get the rig level, I could end up with the wheelchair lift not touching the ground when used. Needless to say, my frustrations with campgrounds that say they have level sites is never ending. I'm talking only a few inches here to make things a hassle. I have carried extra ramps to build linking ramps due to unlevel spots. I just wish when they said level they really meant it. Many many are not even close. One guy even said if your tire is not hanging in the air, it's level.