VTA Adjustment
Without getting in the weeds too much most folk use high frequency and base response to adjust VTA., effectively using  it as a tone control for their particular system This is wrong.
Correct VTA is when the stylus aligns with the cutting angle, this gives maximum groove contact for the stylus profile the designer came up with and the maximum amount of information recovered from the groove.
Because of system deviations, or distortions as Raul would put it, the only correct way to adjust VTA is by listening for maximum information recovery, maximum soundstage size and maximum preservation of the harmonic structure of instruments.
Without getting in the weeds too much most folk use high frequency and base response to adjust VTA., effectively using  it as a tone control for their particular system This is wrong.
Correct VTA is when the stylus aligns with the cutting angle, this gives maximum groove contact for the stylus profile the designer came up with and the maximum amount of information recovered from the groove.
Because of system deviations, or distortions as Raul would put it, the only correct way to adjust VTA is by listening for maximum information recovery, maximum soundstage size and maximum preservation of the harmonic structure of instruments.