You will hear responses for both ways. If you are going to be in it I would say down on the ground. If you are not going to be in it, then I would say keep them up and let the springs and tires do what they are meant to do. The springs and tires will allow the coach to bounce or move with the wind. On the jacks might cause it to be pushed or slide around, especially if you have the weight off the tires. The tires give 6 points of contact the jacks just 4. Good luck and keep us all informed.
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