@nandric , then it is impossible for you to set up a turntable correctly or understand how a cartridge functions. I'll give you the short answer. The groove moves the cantilever above the resonance frequency of the suspension. It is not responsible for the position of the cantilever in space.
The damper, the tension wire and cantilever position
This question is for Dover. I would prefer our ''heighest authority'' Carr but
am reluctant to bather his with possible silly question. Dover however,
whom I regard as ''second authority'' , is used to answer also silli questions.
Now my assumption is that damper to which coills are ,say, pressed
by tension wire balance cantilever/stylu combo in ''all directions'';
left and right and above and below . BUT they also MUST FOLLOW
the GROOVES.
My observation however is that also ''deviant'' cantilevers which
nobody would buy look STRAIGHT IN DE GROOVE. Ergo:: it is
the groove which determine cantilevet/stylus position .?