I think the DaVinci head shell is machined dead flat and with the pivot point being contained in its jewelled double gimbal bearing, it ain't moving anywhere out of alignment.
The problem is of course, that not all cartridge bodies are as perfectly flat nor are the cantilevers for the stylus assembly perfectly aligned and rarely are the styli themselves mounted in perfectly vertical alignment to their cantilevers.
This seems in practice to put most cartridges I mount in my DaVinci 12" Grandezza Ref 'out' of perfect azimuth alignment.
I compensate (as you suggest), with the 'balance' control on the pre-amp.
Not ideal for the 'purists' out there but in the real world of sound, it's hard to find an arm to beat the DaVinci IMHO.
The problem is of course, that not all cartridge bodies are as perfectly flat nor are the cantilevers for the stylus assembly perfectly aligned and rarely are the styli themselves mounted in perfectly vertical alignment to their cantilevers.
This seems in practice to put most cartridges I mount in my DaVinci 12" Grandezza Ref 'out' of perfect azimuth alignment.
I compensate (as you suggest), with the 'balance' control on the pre-amp.
Not ideal for the 'purists' out there but in the real world of sound, it's hard to find an arm to beat the DaVinci IMHO.