Cartridge Alignment

[A K B]

I an unable to align any cartridge in my Sherwood PM 9805 tt. It has an s shape tone arm. Whichever protractor I use the cartridge is angled towards the spindle at both of the null points. I am confused since every cartridge which comes fitted in headshell is squared to the headshell. Is it o.k to angle the cartridge or make it square to headshell after measuring overhang & effective arm length. I neither want to damage the stylus nor my vinyls. Which is the correct method?
TT specification:
Effective arm length 220mm
Overhang 10mm
But actual measurement from spindle to pivot is 205mm

 

[joeinid]

Welcome to the forum, thank you for joining.

 

[Mechnutt]

Are you using the paper protractors that you can download from Vinyl Engine? If so, did you adjust the print for proper scale? I made that mistake and it drove me nuts for about 1 hour until I figured it out.

https://www.vinylengine.com/cartridge-alignment-protractors.shtml

 

[A K B]

Yes I have measured after taking out print & it is according to scale

 

[NekoAudio]

You may find the cartridge lines up better with the headshell if you pick a different geometry: Baerwald, Lofgren, Stevenson. You want the needle to be aligned with the protractor line, for example as described in http://www.feickert.org/fileadmin/bilder/Downloads/Protractor_BDA_2011_mail.pdf, so rotating the cartridge afterwards so it "looks right" isn't the right thing to do.