You are mistaking VTA with SRA = Stylus Rack Angle
The Tonearm Height (VTA = Vertical Tracking Angle) and the Stylus Rake Angle (SRA)
The "big" control variable and hopefully also -screw on the tonearm is the height adjustment, the adjustment of the so-called "Vertical Tracking Angle .
What the height adjustment of the tonearm is actually about, is to trim the angle of the needle's insertion into the record to the angle specified during vinyl cutting. This way you can correct the SRA (the Stylus Rake Angle). The standard for this (exceptions confirm the rule) is around 92 degrees when the needle is dipped with the correct weight. Why not 90 degrees? Because the cutting graver scratches out material when cutting vinyl, and to prevent the material from accumulating in front of the graver, you admit a few degrees, i.e. you cut at a slight angle. 92 degrees.
At this point I would like to emphasize once again that the described settings can be made by ear and taste, as always. Those who have practiced ears can and should use them. The bottom line is the same as with frequency response perception: what you really hear can also be measured. What cannot be measured is often only anchored in the human psyche.
Further some facts you should think about
The issue here is the compliance of the needle carrier. The compliance indicates how hard or soft the suspension of the needle carrier is, which in turn carries the scanning diamond. The unit of measurement of compliance is µm/mN. It is measured at 10 Hz.Some of them measure at 100 Hz. There is also a distinction between dynamic and static compliance. The dynamic one counts; and it is obtained by dividing the static value by two.
MM and MI cartridges have a higher needle compliance than MC cartridges, these have a more stiffer needle compliance
Low compliance = hard suspended systems = values between 6 and 12 µm/mN
Medium compliance = medium hard/medium soft suspended systems = values between 11 and 22 µm/mN
High compliance = soft suspended systems = 22 to 30 µm/mN
Very high compliance = very soft suspended systems = 30 to > 40 µm/mN
Tonearms can be roughly classified according to the following scale
Ultra light tonearm: 4 to 5 grams
Lightweight tonearm: 6 to 9 grams
Medium-weight tonearm: 9 to 15 grams (most of the arms used today)
Heavy tonearm: 19 to 24 grams
Very heavy tonearm: 25 grams and more
For tonearms with exchangeable headshells this must always be included.
Tonearm and cartridge as spring-mass system
The mentioned values/classifications are important because the combination of tonearm and cartridge represents a spring-mass system. Like all classic spring pendulums, such a combination has a natural frequency that depends on the hardness of the spring and the mass of the whole system. This is the famous "moving mass", and only this is decisive: If the hardness of the spring increases (i.e. with lower compliance), the resonant frequency increases. If, in turn, more mass is added, the resonant frequency decreases.
The excitation of the mass-spring-system and the consequences
Now what happens if you excite this mass-spring-system with its natural frequency? Logically: it resonates, so that the oscillation becomes extremely upsetting. These oscillations in turn superimpose other frequencies. They lead to disturbances or booming and color the sound image or restrict the exact reproduction of the music. For example, if the resonance frequency was 40 Hz and you were playing a nice bass tune, the needle could perform a dance and jump out of the groove.
Tonearm adjustment: many settings - lots of sound
When you start with the vinyl hobby, you think in a naive way: screw on the pickups, swing them out, roughly adjust the counterweight, and off you go. Unfortunately a wrong way - at least if you want to listen to music with high standards. Which pickup is already perfectly produced? Which needle is mounted exactly straight? Which needle carrier is at the exact angle in the generator?
Azimuth: mandatory setting of a good tonearm
The most obvious production errors can usually be detected with a sharp look at the needle carrier and needle. A magnifying glass or USB microscope can help enormously. If the needle or the needle carrier is obviously mounted crooked, you should complain about the pickup at the dealer. Slight misalignments can be compensated by using the mounting bracket in the headshell.
How to correct skewed needle carriers and diamonds
What can only be compensated for by adjusting the azimuth on the tonearm is a diamond inserted at a slight lateral angle, as unfortunately occurs in 80% of all cases with MC pickups. If you want an exact position of the needle in the groove and thus a perfect result, you have to measure and correct the azimuth. Many do this by ear. Respect, who can do that! The goal of an azimuth measurement is always to create a channel separation that is as equal as possible by using different angular positions of the headshell. With well produced pickups, the corrections are +/- 0.5 degrees or less to achieve the desired position. This sounds like little at first, but at one degree you can see the "skew" more than clearly.
Hope you can use these infos.