Scott,
I trick I used to use on the KN5000 was to take a Piano voice, lower it 1 octave and save it to a custom voice. Then assign it to the left hand. Gives you a nice lower-octave piano to play between changes. You have set the volume just right on the left hand voice, then play with a light touch when hitting the chords, and a little firmer when playing the piano fills or runs.
DonM