Did you ever sort this out? I've got the same issue.
New globes from Impex, new fluid, new OEM bushings alllllll around (upper and lower shock bushings, upper/lower front control arms, upper/lower rear control arms)l, panhard bushings).
Pressures are in spec - rears are actually a little low since I swapped to king springs, but prior to that they were a little high on old OEM AHC springs and it rode the same.
Doing the 16 step test on all four corners seem to indicate that the damper actuators are working properly, and it changes steps as I drive as it should.
Ride quality on little stuff SUCKS (my 700' gravel driveway is hell), but it is smooth over medium/big stuff.
I've put a lot of time, effort (rear upper shock bushings...), and money into keeping AHC, but I'm currently super dissapointed.
Any wisdom from
@IndroCruise,
@PADDO or
@uHu ?