I don't generally change the VTA once I have it in the right area (IOW, proper tonality, no breakup). The arm/cartridge resonance is far more important IMO; once that is right and you have otherwise proper setup, the SRA is not going to be particularly critical. If you set up for 92 degrees you will have a good average.
The really important thing here is that there are cartridges where the stylus is installed improperly in the cantilever; if this is the case you will never get the cartridge to work correctly as it is defective. So actually working to get the 92 degree angle is a good idea even if the LPs themselves are not cut exactly at that angle.
The amazing thing about the LP is how well they work, especially since so many aspects about them are compromises. Overhang is a good example, and SRA is another.
The really important thing here is that there are cartridges where the stylus is installed improperly in the cantilever; if this is the case you will never get the cartridge to work correctly as it is defective. So actually working to get the 92 degree angle is a good idea even if the LPs themselves are not cut exactly at that angle.
The amazing thing about the LP is how well they work, especially since so many aspects about them are compromises. Overhang is a good example, and SRA is another.