Has anybody successfully used the split keyboard function on an XK2 to output Left keyboard into MIDI and retain Right keyboard as Hammond?

I'm the bassist with my band, and want to hook my Alesis synth to the Left output of my XK2, and play standard Hammond with the Right half of the keyboard.

This will let me have much better sounding bass than typical keyboard bass. My less-desirable alternate solution is using a 2nd keyboard strictly as a MIDI controller for the Alesis.