I also have the auto level. What I do to reduce wobble is try to keep all 4 wheels on the ground. I do this by making sure the from jacks are partially extended before I pull the pin and drop the front legs. I also use some wood blocks to level up the trailer from side to side before auto leveling. Still get some wobble but it helps.
I haven't tried the locking scissor jacks between the wheels. Would like to hear if others have found this is helpful or not.
2016 GMC Sierra 6.2L gas
half ton with towMAX package
2016 Crusader 295RST (5th wheel)
Camped 80 days in 2016, 42 in 2017, 42 so far in 2018