When parking for winter storage, at ride height, I put large hardwood block's under the retracted jack's, jack pad's are within 1-2" of the pad's. Then I dump the suspension, the weight of the Coach is now on the jacks and not the Chassis and the spring's on the jack's are at retracted/rest state. I just got done doing the Chassis maintenance, so I raise the jack's till it is high enough to work under it, more large blocking under the rear frame under the trailer hitch for added safety, also in the front. When done under there, let it back down a bit..........then sits for the winter.
During the travel season, I just park it at ride height......air leak's all fixed, and it sits on it bags sometimes for a month without dropping.
2012 Essex 4544 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006 Ultra & 1989 Springer