ejc1214,
First off, you'll most likely get a few thousand opinions on leveling here. Second, I'm not a fan of the "Three point" levelers and have always liked the four point over those. Third, again, this is an opinion not gospel, If we encounter an un level spot in camping, I carry a small lumber yard in one of my compartments. I use what I need to preliminarily level the coach with the tires and wheels.
That means I keep adding whatever I need, within reason of course, to bring the low end up to a somewhat level situation and then, use the jacks to do the fine tuning and stabilization. By doing it in this manor, you don't tweak the frame, body, windshield, doors, and more by making the jacks try and do all the work.
I even carry enough to place under the jacks in that kind of situation so the jacks don't have so far. Just a preference here. Good luck.
Scott
Scott and Karla SDFD RETIRED2004 Itasca Horizon, 36GD Slate Blue 330 CAT
2011 GMC Sierra 1500 Ext Cab 4x4 Toad
2008 Caliente Red LVL II GL 1800 Goldwing KI60ND