I have nothing to contribute in this particular subject, but still there is one thing...
Dnj,
you mentioned that "....but theres just something missing in my musical performance that I cant put a finger on & heres lies my thought on maybe its not having a Tyros 2?...."
I am thinking, maybe you don't exactly need a Tyros2, you just need a new toy to play/tinker with? After all, all top arrangers, in capable hands such as yours, will deliver the goods.
I am surprised nobody mentioned this, the simple need to change every so often.
Toys for boys,
Theodore