First you need to "learn in" the adjustment motor positions into the HRA control module. After that they're usually spot-on.
Need the SDS to do this learning procedure. Kind of fun to do it....zip they're at the top up the travel, zot they're at the bottom of the travel, then they go to an adjusted position based on the front and rear level sensors.
ps Why did you need to replace both headlight assemblies? Just curious.