Essentialaudio,
Yes, the line contact styli I have used are extremely sensitive to changes in VTA/SRA. I know that many claim that small changes should be inaudible, but, my experience is otherwise. Making very precise changes of well under 1mm in height at the tonearm pillar on a 9" arm makes a clearly audible difference.
I do use records of regular thickness to set the VTA/SRA and then I don't bother to make changes for different records.
Yes, the line contact styli I have used are extremely sensitive to changes in VTA/SRA. I know that many claim that small changes should be inaudible, but, my experience is otherwise. Making very precise changes of well under 1mm in height at the tonearm pillar on a 9" arm makes a clearly audible difference.
I do use records of regular thickness to set the VTA/SRA and then I don't bother to make changes for different records.