UPDATE on pedal/sustain issue:
Yamaha missed the boat on this, but it's not a deal breaker. As the manual states (p.15) the 3 pedal unit operates the way it should, with the LH ignoring the damper pedal in split mode. Unfortunately, the dedicated damper pedal jack on the instrument (the one MANY players will use) does not support this. I'm currently modifying the pedal unit to attach to a traditional, portable stand (not sure which one, yet). The 3 pedal unit is larger, and heavier, and needs serious support to function comfortably. I'll post my findings when I sort it all out.