Peterayer,
I hear you. Yes, the cartridge I am currently using is a ZYX Omega copper and whilst the cantilever is mounted straight in the cartridge (only line-of-sight but my eye says ok), according to the Adjust+ software the azimuth angle of the stylus was 2.5 degrees out. Under magnification, the stylus is at an obvious angle. I find that unexpected and disappointing in a $3k cartridge (approx price here in Australia) and may indicate why the price of these ZYX cartridges fluctuates wildly around the world.
So in your original statement where it shouldn't matter, you are absolutely correct. But where the headshell is removable, even though the SME folks have designed a great locking mechanism that pretty much snaps in, there is a small amount of rotational movement allowed for the azimuth correction so it is best to understand if you have the headshell correctly aligned even if the cartridge is perfectly aligned within itself anyway.
So if your headshell is integrated into the arm and not moveable and you know the cartridge to be perfectly aligned within itself then there would be no need for azimuth correction. I always suspected the Omega cartridge was not quite right and the Adjust+ software simply horrified me as to how much it was out of rotational alignment.
I hear you. Yes, the cartridge I am currently using is a ZYX Omega copper and whilst the cantilever is mounted straight in the cartridge (only line-of-sight but my eye says ok), according to the Adjust+ software the azimuth angle of the stylus was 2.5 degrees out. Under magnification, the stylus is at an obvious angle. I find that unexpected and disappointing in a $3k cartridge (approx price here in Australia) and may indicate why the price of these ZYX cartridges fluctuates wildly around the world.
So in your original statement where it shouldn't matter, you are absolutely correct. But where the headshell is removable, even though the SME folks have designed a great locking mechanism that pretty much snaps in, there is a small amount of rotational movement allowed for the azimuth correction so it is best to understand if you have the headshell correctly aligned even if the cartridge is perfectly aligned within itself anyway.
So if your headshell is integrated into the arm and not moveable and you know the cartridge to be perfectly aligned within itself then there would be no need for azimuth correction. I always suspected the Omega cartridge was not quite right and the Adjust+ software simply horrified me as to how much it was out of rotational alignment.