Oh dear Mike, you seem to be going down a rabbit hole there, and maybe taking some of us with you ;) I never gave it any thought before, but I do now.
Couple of links here which might interest you if you haven't come across them already:
https://www.youtube.com/watch?v=ZTYso-b0Twg
https://www.google.com/aclk?sa=L&ai=...BAgLEAs&adurl=
Having read further into this, it would appear that the above mentioned 2016 Rhino pressing (which I very nearly bought this morning) should not be confused with the later and superior Rhino Hi Fidelity AAA pressing cut by Kevin Gray (which of course is going to cost a lot more).
Right, after all that I need a lie down...