Before unhitching from truck I run front land gear legs down so that when I pull the snap pins the inner tubes aren't extending as much.
After unhitching I raise/lower landing gear legs to level front to rear then I drop front legs 1". Then I run rear stabilizers down and use 6X6 block under the pads so stabilizers have as wide of a stance as possible. Then I run the stabilizers down tight.
Then raise front legs back up to level.
The wide stance of rear stabilizers, the tightness of the stabilizers from loading them with front legs, the front leg inner tubes not being extend much all help to make our 5vr solid.
There is still some bounce because of rubber tires/springs. If that little bit of bounce is bothersome.......get a couple of screw type jack stands and place them in front or rear of wheels and screw them up tight.