What is you tonearm’s Maximum Distortion?

Right now I am using the HiFi news test LP protractor, just because it is handy. Does anyone know what alignment it is?

And I am mostly curious what the figures are for the tonearms of folks like you? Just because this is a new area of exploration for me and it might help me get a better overall concept of what is going on and how important the numbers are.

My ears are pretty good (professional orchestral musician who is a bit obsessed with tuning perfect intervals, including overtones). But my listening room has never been really ‘tuned’.

@fusian : Here the calculation. For a protractor you can contact MINT-LP and he will makes a dedicated protractor for your today TT/tonearm, ask him for Baerwald alignment. It’s really accurated and not an expensive protractor:

https://www.vinylengine.com/tonearm_alignment_calculator_pro.php?arm1=Arm+1&l1=ps&a1lv=225&a1=la&oh1v=&oa1v=&arm2=Lofgren+A&l2=ps&a2lv=225&a2=la&oh2v=&oa2v=&arm3=Lofgren+B&l3=ps&a3lv=225&a3=lb&oh3v=&oa3v=&arm4=Stevenson&l4=ps&a4lv=225&a4=st&oh4v=&oa4v=&rs=12&rsv=&og=iec1&ogv=&ig=iec&igv=&cal=y&submit=calculate

Does anyone have their tonearms’ figures, re: max. distortion % and max. error degrees?

Both you and Raul referenced the same algorithm on Vinyl Engine.  I see where it has a readout for distortion once you plug in the known values for any particular tonearm, but I have no idea how it comes up with distortion %, mathematically.  I guess it uses formulae first promulgated by the gods of alignment, Lofgren and Baerwald. Anyway, sorry I cannot respond to your actual question. My feeling is that distortion has to be measured, not predicted based on angular errors,

Good point, lewm. I will reword my question:

Does anyone have the theoretical figures for your tonearms’ maximum distortion % and maximum tracking error degrees, based on the vinylengine Overhang Shift Calculator?