For winter storage, I leave my jacks up and put a set of wood blocks under each jack. I then dump the air bags. The coach will lower down on these blocks without extending the jacks. This takes the weight off the tires. I asked (Paul) Azpete, the resident HWH expert, about this procedure and said it is OK.
Vera & Ken
1998 Holiday Rambler Imperial, RR8S Chassis
Cummins 6C8.3 mechanical engine, 325HP, 3060 Allison
Towing 2014 Ford Explorer