I made supports by "cribbing" 4x4's with a piece of 2x12 across the top, shimmed with 3/4" and 1/2" planks to get within 1/2" to 3/4" of the fully retracted jack pad with air suspension fully aired up. As the air pressure bleeds off over time, the MH settles on the cribbing and relieves the weight on the tires. I have stored the MH for up to four months using this method. If you choose to use a version of this, make sure you leave that gap between the jack pad and the top of the blocking. When you start up and air up after storage, the air bags do not always return the Coach to the exact height it was when you parked. Instead of the cribbing for blocks, some have cut railroad ties to length and stood them on end under the jack pads.