I had my Atwood Levelegs recalibrated back in May when I repaired a broken jack, but sometimes they still do not get me to the degree of level needed.  DW does not like the head of the bed to be on a down bubble, so after I let the auto level feature runs it's course, I break out the 12in torpedo level, and start "tweaking" the level.  DW sits at the control panel and manually extends/retracts side to side or front/rear jacks as needed to get SUPER level...