Cartridge protractor- the best?

Are you familiar with exhaust sound of Ferrari? Can't confuse it with the others. I heard that they invite someone to tune it by ear. In any case, it sounds better than stereo.
Mounting cartridge by eye-balling it? That could be fun but I am afraid it would take more than a day or two.
I use DB as well and then fine-tune.

More thumbs for Yip's arc protractor. Ie for the individual
combo TT-tonearm because the (different) dimensions of the spindle are accounted for.

Regards,

Thanks all! I will look into the MintLP.

Couldnt agree more with yip's mintlp. Highly accurate . Need bright light & suggest to set up with a 10 x 20 monocular

Can someone please explain how any of these alignment protractors being discussed that use line of sight from spindle to pivot can be as accurate as a protractor that uses an arm and pin/nail (Dr. Feikert or Clearaudio) that locks the protractor to the arm's pivot point ? Seems to me using line of sight, it would be easy to be off by a few millimeter's either way, resulting in an inaccurate cart alignment.