Please state your needle shape.
Technics tonearm was designed with 52mm (from the tonearm tube end) to the stylus in mind, giving less distortion at the end of the LP then Baerwald (equal distortion) approach. I don't care how you measure this distance of 52mm: swiss caliper, micrometer, Technics gauge, etc...Looks like you changed this design assumption and your results can be better or worse depending on particular music material dynamic range and its location on particular LP. For example: for 12" singles it makes sense to user system that gives least tracking angle error on outer radius and disregard the high distortion inside.
Technics tonearm was designed with 52mm (from the tonearm tube end) to the stylus in mind, giving less distortion at the end of the LP then Baerwald (equal distortion) approach. I don't care how you measure this distance of 52mm: swiss caliper, micrometer, Technics gauge, etc...Looks like you changed this design assumption and your results can be better or worse depending on particular music material dynamic range and its location on particular LP. For example: for 12" singles it makes sense to user system that gives least tracking angle error on outer radius and disregard the high distortion inside.