Oh jeez, I didn't realize they changed the tip openings in 2013. Is there any way to tell whether you have a pre- or post-2013 S80 or S90, or are you just drawing straws if you buy used?
They have been using the same tip opening system since the 1940s AFAIK, who Earth thought changing it was a good idea? IMO if they wanted to offer smaller tip openings, they should have brought the B facing back and focused more advertising on B and C.
On a different note, I've always wondered where Selmer gets those 'table length' things. They can't possibly be referring to the facing break - I've never seen nor heard of any Selmer alto or tenor piece with a break anywhere near the length they put on those charts (not even their 1920s pieces)!
Back to the OP, Mr. Heanard, you just gave a fantastic theory of why some people hear different tones from the same setup. I personally find S80s to be curiously bright for classical pieces, so it's good to hear that maybe I'm not entirely a lunatic!
It's a shame this CD piece is so expensive, I'd love to try one. I don't play classical often enough to justify that kind of expenditure, and if I did I'd be more likely to choose the Morgan Classical for my own taste. That said, I was surprised once by my V5 and I love my Selmer soprano pieces, so I would happily try one of these if the opportunity presented itself.