Hi Dave,
You showed me yours, I’ll show you mine. Haha.

Actually, if I don’t use laptop, I could play r/h full piano and use l/h for sx 900 chords. Just not sure I could get used to playing the 2 layers of keys.
Same goes for layering p121 piano with rh melody voices on sx.
Probably doable, just haven’t tried it.

The p121 is working out great.