It has to do with how the MM handles the effects. Sounds like you're running into the DSP limitation on the MM. I could be wrong.., but I think it gives DSP priority to the RH tone.

Yes you can adjust the balance between your dual voices too. You have to go under the EDIT menu (button next to Utility under FUNCTION) There are numerous voice related parameters under there DUAL VOICE is one of them.., as well as pan, octave, DSP, Reverb, ect. Look in your manual as there should be a reference page that lists the parameters under the EDIT menu.



[This message has been edited by squeak_D (edited 05-29-2009).]
_________________________
GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.