"The debates about WHY this information wouldn't be accurate or helpful are drifting further into obscurity."
Oh, No! We can't have that!!
Ahem, to illuminate:
Two reasons why a standardized environment is moot:
1. Every mix is different. There is not one environment. There is not one method of recording an orchestra. There is not one method of mic'ing an orchestra. There is not one method of playing each instrument. There are as many dynamic ranges of an instument or ensemble as there are players and ensembles.
2. Sample mockups with VSL are especially variable (and customizable=this is GOOD) because of the normalized, silent stage process. Why limit yourself by Standardizing (bastardizing) variables, thus limiting the potential?
CAVEAT:
This does not mean that you can't have a "starting point." For me, this means setting up general levels at -15 to -20 (in Logic), general pannng, general reverb type and level, etc.
The only other exception is if you want to emulate a particular recording. To which I say, Listen, Listen, Listen. Take the time to get the same reverb, e.q., DYNAMIC RANGE, and everything else. Then make a template from that that says "John Williams Jaws Temp" or whatever.
Liberty and Freedom for all!
Clark