In addition to 2-point and arc protractors for turntable setup, you can now generate custom linear offset protractors on this site.
Just like 2-point protractors, linear protractors are universal (generic) and can be used with any turntable. They only use one grid, but this is enough to align the cartridge to any geometry. The sightline, pointed towards the tonearm, ensures that the protractor is placed correctly.
If you haven’t tried a linear offset protractor yet, make sure to check out this quick and easy way to align a phono cartrigde!