Like I said I was reserving judgement until I read the article (Motorhome Magazine, October 2013, page 64 - "LEVELING") the OP was talking about. Will I have, and most of you have the OP's post all wrong. And I think he completely misunderstood the information concerning this type of leveling, and should go back and read it. The article is not about tires being unsupported off the ground. It is about a tire being on a block or board for purposes of leveling. And yes, the complete contact patch of the tire has to be on the board. The contact patch of a tire is the portion of the tire that completely touches the pavement or leveling board.) If any of the portion contact patch of the tire is hanging over the edge of the board, it can cause internal damage to the plies of tire. The whole purpose of the that portion of the article was to tell you to keep the contact patch of the tire completely on the block or board that your are using to level your rig!!! It is not about tires hanging from the suspension.