How to use a Cartridge Alignment Protractor (Stevenson, Baerwald, Loefgren)

Purchase the same protractor as me:
USA: amzn.to/2RUAnUf
International: geni.us/uRJrhYr
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Using Stevenson, Baerwald, or Loefgren Protractor is a skill you will need to know if you ever want to change out your turntable cartridge, and each one works in the same way. They also allows you to remove annoying sibilance and distortion toward the inner groove of the record.
The protractor used in this video is a Baerwald and not a Stevenson. I ordered a Stevenson Protractor and just trusted that it was so, unfortunately I am too trusting.