Right Angle Finder: Accurate & Easy Measurement

Hi.

is the straight-angle constantly being learned... and is the initial learning just a starting value?

I had to recalibrate the alignment angle on the Golf after disconnecting the battery for a long time and replacing the steering column control unit.
I know for sure that the brake control module (BCM) reading showed 0.00 degrees.

Now, a week later, the steering assist module shows a value of -0.70 degrees.

m;