Small hydraulic jacks (10-ton). I put them where you would feel comfortable at jacking the trailer up at (on the frame). I wood blocks to get them close and then lift the rear stabilizers about an inch and a half. Screw the bottle jack to meet the framing. Then lower the rear stabilizers an inch. Then tighten the JB-Strong arms. It does help. Others have their own way to reduce the bounce (Oldcoot) and I do re-level every week if at an extended stay. I have a Flagstaff 8528 BHSS and learning things always. Did you know you should lube your front landing gear? Most will have a grease zerk for the screw staff but on the bevel gears you'll need to remove the top cap and shove some red grease in there.
Don & Dona W/yorkies Gizmo, Master Chief, & Tali
2011 Flagstaff 8528 BHSS 2015 Ford 6.7 XLT
2010 Full Timers & Still Going