METAL- I don't have DIRECT answers but I am having the same type issue(s).
First time I used "AUTO LEVEL" my front end was way higher, tires were 3-4" off the ground..NOT GOOD. I followed the owners manual for the system, and did the "reset calibration" program. Tried again, still not what I had hoped for.
I now manually level the coach. I use a level "app" on my phone, place the phone flat on the floor, extend rear jacks down together, lift coach 2-3" in the rear (or until my level shows a rear end high angle)then extend front jacks to level front to back...I then use the left/right down to level side to side...once complete, I shut the system down.
As far as "retract all", yes, its a bit rocky and initially can catch you off guard.
My biggest issue is I will be on fairly level ground, the unit will see like a 1.6 degree of difference frt/bck and not allow the leveling system to engage/work. Ive walked out and taken a look and it appears almost spot on level. My prior coach had a different system and the auto level would work on sloped ground that was noticeable, this one doesn't want to level out unless I am almost perfectly level to being with.
I am hoping its user error and there will be an "AH-HAH" moment when I figure it out...haven't had that yet, unfortunately.