@jjss49 my comment related to P2S. Being off by 1mm you are basically guaranteeing you will never get the alignment the tonearm manufacturer intended. There is no excuse for such a large mounting error especially as there should be adjustability in any tonearm mounting to get it just right and the manufacturer should provide a jig that demands this level of accuracy (such as a pre drilled metal jig)
having correctly mounted the tonearm there is then the secondary problem with some multipurpose alignment tools such as the AS Uni that demands you measure P2S in using the tool. AS specify .05mm accuracy for this measurement in their current version of this tool https://www.arche-headshell.de/alignment-tools/smartractor/
net net net there is no substitute for being as precise as possible, sorry
having correctly mounted the tonearm there is then the secondary problem with some multipurpose alignment tools such as the AS Uni that demands you measure P2S in using the tool. AS specify .05mm accuracy for this measurement in their current version of this tool https://www.arche-headshell.de/alignment-tools/smartractor/
net net net there is no substitute for being as precise as possible, sorry