Diki ....
Maybe you can tell the difference but I dont think the average listener in the audience really notices the difference you mention regarding all the technical nuances.
I would say to my ears most of the SA sounds are very close enough to make people enjoy playing & others enjoy listening.
I cant wait, tomorrow my S900 will be here.
Thanks everyone for all the suggestions, tips & help in making me realize that the S900 is truly the keyboard for me at this time.