a Quicky clarificationQuicky,
I'm confused when you use the term NOS. The conventional meaning is New Old Stock. It usually does not refer to characteristic sonic attributes. The only possible exception to this I know of is when NOS is used to refer to NOS tubes compared to new manufacture tubes, but even then, the variety of sound from NOS tubes is... well, various.
Could you clarify for me as I am interested in your review.