Azimuth 2020

I respect everyone's methodology. 
That is the sole reason I asked. Not for sarcastic sad sack BS.
 I didn't acquire a Puffin for azimuth setting. I got it because it optimizes my carts closer/easier than all others. Any SQ you desire is obtainable.
And it has noise control ala SugarCube so I can stand listening to my Direct 2 Disc platters again.
And it was $399 delivered in 3 days. Plus a few bucks for SPDIF output parts. I'm not sure if that is worth it as the internal TI DAC matches the ADC transparently. Shannon is improving the firmware (free) daily.
He started out in the biz making a successful tube pre but he's moved on and up in SQ.
https://www.tnt-audio.com/ampli/parks_audio_puffin_e.html

There you go, Lewm has the right idea. You put the stylus down on a pocket mirror which makes the error much easier to see. Use a good light.
The stylus and it's refection form an hourglass. You adjust the azimuth until the hourglass is perfectly symmetrical. There is no better way to do this as this insures the lowest record wear. If the cartridge is not constructed well you might have more crosstalk but the solution to this problem is not more record wear. It is a better cartridge. 

edwyun, I ask this question out of pure curiosity, not meaning to disagree at all, but is it possible to optimize two parameters (crosstalk and phase) that may be antagonistic by making one adjustment of cartridge orientation (azimuth)?  I would guess the result is inevitably a compromise, which is where we all end up in this hobby.

Unwarranted to disagree with anyone here. Civil discussions are pleasant AND educational. Thanks all for the insight.

you can not use a pocket mirror for azimuth.  The silver (reflective) side is above the glass its sitting on which will create big errors.   If you must use a mirror, get an old SLR camera mirror that is silvered on the correct side for your application.