It is solved not on alignment tool for headshell integrated cartridges like FR/SPU, but with correct PS distance by tonearm designer if you're using FR cart on FR tonearm. On Feickert you can only verify Stevenson point for those FR/SPU headshell integrated if you're using them just like the manufacturer suggested to you them.
For the rest of the cartridges you can adjust everything and altering the alignment by choosing the one you like (Baerwald, Stevenson or Lofgren).
BTW some headshell integrated cartridges like old Dynavector and Technics EPC100c or 205c are adjustable, overhang and azimuth are adjustable, but you can't swist the cartridge anyway.
For the rest of the cartridges you can adjust everything and altering the alignment by choosing the one you like (Baerwald, Stevenson or Lofgren).
BTW some headshell integrated cartridges like old Dynavector and Technics EPC100c or 205c are adjustable, overhang and azimuth are adjustable, but you can't swist the cartridge anyway.