I got my setup straightened out but I now notice a big difference in the volume of the audio being heard between the Korg TS workstation and my Motif XS-Rack. 
All of my audio is coming thru the FF400.
MIDI-Audio setup
I have my level meters in Total Mix (TSM) set to RMS.
If I record my Korg TS (piano patch) i notice in TM that the RMS levels are around -24.00 when I play a note relatively loud.
If I use the same amount of velocity to play the same note (relatively same piano patch) on my Motif Xs-Rack the RMS levels only go to around -34.00 dB. 
That's a noticeable difference.
Anyone else with Korg and Yamaha products get the same kind of results?
And if so, how do you compensate or make the levels relatively the same?
thx.