Haha I've barely scratched the surface of the BK-9! Actually I'm still waiting for a suitable monitor system. Believe it or not this is my first "pro" board without speakers.

I will say, the key feel is leagues better than my E-50, and about on par with the Tyros 5. Sounds are generally excellent through headphones. I'm disappointed though that my user styles seem to need a lot of tweaking (even after using them on a BK-7m!) I'm not an expert when it comes to DSP and effects; I suspect that's what they need most. Another way to tackle this problem would be to re-create them starting with styles that are native to the BK-9.

I miss the big screen of the Tyros. I've just begun messing around with iPad connections and apps to create and manage registrations. Also looking for an iPad-based solution to display music, especially if it can also play MIDI files, with a "follow the bouncing ball" real-time score display.

The E-A7 looks bewildering... I'm surprised Fran thinks the UI is better than the BK-9. I had a BK-5 briefly, and compared to the Prelude/GW-8, controls are laid out pretty thoughtfully for a real-time arranger. Not giving up my E-50 just yet though... :-)