@Winterclaw,

Quote - "Plus a PNU is kinda big and doesn't sound nice for fine tuning and others, not knowing what it is or caring and opting for the familiar wouldn't use it for your stated reason."

Like I said, which units you choose to use comes down to a matter of personal preference. My preference is for PNU as I find find it easier to work with, and it saves me a lot of time by not needing to do any conversions. But that's just me, I'm not saying that you should use PNU, use what ever works best for you.

As to the standard, PNU is the standard, because it is what Poser uses. Any other units displayed in the Poser interface are arrived at by converting the internal PNU value to that other metric, but internally Poser always uses PNU, so PNU is the de facto standard.