Mike,
I was told when I bought my coach that, if and when I used my hydraulic jacks, I should always lower the front jack first to put weight on it. I could then lower the rear jacks and do my leveling in that manner. That way, the coach can kind of rock to one side or the other without being torqued quite so much. I don't use jacks often, but when I do, I make sure my front wheels have a lot of the weight removed from them.
Roy Warren