Height calibration

[D R Taylor44]

Using the gap iid I'm trying to calibrate my height. I'm lost on what I'm doing wrong.
Fr 22in. Fl 21.5
Br 22.25. Bl 21 5/8

 

[D R Taylor44]

Update. OK so the sensors were to far out of calibration and would throw a red suspension fault and drop the vehicle to the bump stops while driving. I stopped trying to manually adjust it and used the guided calibration instead. I don't know what I was doing wrong manually but the guided calibration did the trick tip top. Took it for a high speed drive and all sensors stayed in sync with each other and the problem is no more.