As for adjustability, for some body wanting a simplistic method to adjust Pillar Height.
A new card deck has Cards with a almost consistent dimension of 0.2mm per card.
Using the deck or proportion of deck set upon a LP and under the arm wand close to the Pillar, enables very controlled incremental changes to the pillar height and VTA/SRA.
The Azimuth adjustment is more complex to control, depending on Headshell Type, to achieve the 90 degrees to the Groove will take on different processes.
The Zenith adjustment, setting the Styli parallel to the Groove is the one most overlooked.
Manufacturers of Styli that set the gem on to the Cantilever are not too up to speed with their quality control on setting the gem.
I don't know who has the perfect Zenith and who does not, I will know I could improve on this area as a discipline.