Dear Stefnal: The manufacturer minimum/maximum range is the right way to start about VTF.
Where we have to be carefully is not to pass the maximum VTF recomended for the manufacturer because over that maximum VTF the coils will be out of center, the suspensión designed characteristics will change for the worst, probably the stylus could run out faster and maybe you can ruin your records faster too. I always ask the manufacturer which is the maximum " safe " one VTF on their cartridges.
I agree with Tom about the temperature influence on the cartridge performance.
Albert, I think that Koetsu does not give any advise about because that is part of their " odd philosophy ", because even Koetsu has to have a maximum VTF limit.
Regards and enjoy the music.
Raul.
Where we have to be carefully is not to pass the maximum VTF recomended for the manufacturer because over that maximum VTF the coils will be out of center, the suspensión designed characteristics will change for the worst, probably the stylus could run out faster and maybe you can ruin your records faster too. I always ask the manufacturer which is the maximum " safe " one VTF on their cartridges.
I agree with Tom about the temperature influence on the cartridge performance.
Albert, I think that Koetsu does not give any advise about because that is part of their " odd philosophy ", because even Koetsu has to have a maximum VTF limit.
Regards and enjoy the music.
Raul.