Ryan it doesn't matter what patches you select on the Fantom. If you're using the RD soley as a midi controller all you have to do is make sure you match the midi chan.
The RD will just become the set of keys.
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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.