Daniele,
The idea is to achieve an SRA of 92 degrees, which is presumably achieved with the tonearm parallel to the record surface. However, given the variance in styli mounting as now well documented, setting the tonearm parallel to the record might not necessarily result in 92 degrees. So absent a good USB microscope with measuring, you might have to set it up by ear.
I have a Delos mounted on a VPI Classic and I set the tonearm parallel to the record surface using a medium-thick record as to my ears it sounds best. Perhaps my stylus was mounted correctly...:)
The idea is to achieve an SRA of 92 degrees, which is presumably achieved with the tonearm parallel to the record surface. However, given the variance in styli mounting as now well documented, setting the tonearm parallel to the record might not necessarily result in 92 degrees. So absent a good USB microscope with measuring, you might have to set it up by ear.
I have a Delos mounted on a VPI Classic and I set the tonearm parallel to the record surface using a medium-thick record as to my ears it sounds best. Perhaps my stylus was mounted correctly...:)