There are many ways to adjust overhang and some are quite different: Baerwald, Loefgren or Stevenson. Vinylengine.com has a great section on cartridge alignment and you can download and print different protractors. Maybe you can find the right one that will work with your cartridge and turntable.
How important is Cartridge Overhang? Need help
Just received a Mint protractor for my Pro-ject 2 Xperience. I started the processes of setting the Overhang and it seems that my Ortofon HMC 20 can't achieve the proper overhang. The cartridge is maxed out to the front of the head shell and the result I get is: at the outside of the arc it sits perfectly and on the inside it sits behind the arc. I guess my question is this how important is overhang and if it is important is there a good compromise.Should I just get as close as I can and worry more about alignment?