Diki,
Yes, from a pure tech. standpoint I agree 100%.
But, I should not get a stupid Honk sound when I play Sax from C5 to C6! ONLY on that one note. And, the damm vobrato should not be almost twice as much from 1 note to another (only a couple places in the key span, and only some sounds). Agree? That's just bad samples or the sound engineer did not select the correct one..when they stretch a few notes (usually 3-5 or so) per sample you will get a small variance. That's not what I am talking about...this is all of a sudden, and obvious. To keep it in context, it is not every sound, just some, but way to many and it seems it's the ones I want to play.

I'm sure the Yamaha is far from truly perfect, BUT, I think on the T3/T4 they were a lot more careful and skillful in the sound engineering. This is based on what I have heard in demos...I don't have one.

The PA2XPRO is in general a fine instrument and has some super sounds. But, the way I play I have found some issues.

With no one singing, and music like Telmo and Solitare the sounds have to be great, as that's all there is.
If someone used those same voices I am talking about and played fast dance music....maybe sang too, with lots of heavy style going too...you would probably never notice it.

Have you listened to the performances by Solitare? It does take some time...if you find time I would be interested in you opinion of the sound of the T4(we know he's good!).

I don't hear too much wrong with this:
http://www.youtube.com/user/YAMATI40#p/u/73/YtJOVGn_UR8

By the way, If Korg fixed those issues...(I sent them a 3 pg. document) there still in the game for me.