Azimuth 2020

@cleeds 

"If the pickup arm’s pivot angle is perpendicular to the offset"

What is a pivot angle and how can an angle be perpendicular to anything?  I fear you are in over your head.  Just as well that this matter be dropped.

looscannon

It seems there might be a problem with definitions here.
With any offset arm changing the VTA ...

Good point, and it is quite likely that you are correct. I suspected earlier in the thread that some here did not understand some of these definitions (such as VTA, SRA and azimuth) and so of course that's an obstacle to understanding.

I can't help those who don't understand the geometry of pivoted pickup arms. I can only suggest to them that - as a starting point - they listen to someone such as Wally Malewicz (RIP) explain. There is an introductory video here.

Azimuth can be measured, by the way, so it's silly for this dispute to continue.

MiJostyn.....not in all cases If the pivot of the arm is at a different angle than is the headshell..... Cleeds is right. Bad arm design....every warp of the record would change the azimuth (as well as the VTA, and vtf)

There is no RIGHT or WRONG setting or answer, only the best scenario for your situation and setup. You need to decide do you want the most accurate channel balance or the most accurate crosstalk measurement? 

Then sit back and enjoy.

That's not really true. "Crosstalk" is not a matter of being accurate. You can maximize the minimum crosstalk, i.e. lowest in each direction, or maximize the total cross talk. Neither is going to optimize azimuth which is accurate orientation of the stylus w.r.t. the groove.
Optimizing the left and right channel frequency response at high frequencies, i.e. >20KHz, appears to be the best measure of accurate azimuth. This is not the same as low frequency channel balance.

There is no RIGHT or WRONG setting or answer.