My dealer friend (Mrs Russo) has a 9kPRO, not the Tyros, Sk-user. I actually might keep this Ty around for a while because the styles are so good. It sounds like I always wanted the Ketron and Korg to sound. Great tone, but they both had too busy patterns. The Yamaha programmers did a better job at making the patterns more universal without loosing their "sizzle".
I might be over the Pro fetish....who knows. I still like playing the keys on the Pro better. The Ty is only slightly better than the 2100. They keys are actually the same, just more spring resistance and a cushy bottom.
(Who DOESN'T like a cushy bottom???
)