Prime Azimuth Adjustments by ear

[Buzzman3535]

Fine tuning my prime by ear with the fine azimuth adjustments on either side of the tone arm.

What is the main thing you would be listening for....channel separation and clarity?

Balance?

All of the above? Is its strange that I try the two extremes, all the way left pin extension, all the way right pin extension...and I don't notice a major difference by ear when I playback?

Is that possible?