Those look pretty sweet.
I guess you could adjust them front to back to help level the rig (when parked) if you dont have Hydraulic levelers. Would make using the lego blocks less challenging. Get it "Close enough" with the blocks.... then add some air to the front or back (or both) to fine tune it.
I wonder if they are much smoother than the Sumo's.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, Fresh water surge tank, Black Tank Tornado flush, 4999 zip ties.