Any reason why not to use a splitter like the Galaxy Audio JIB/S 4 to use one expression pedal to control all 4 of the pedal inputs on the FC-6? I can assign each input to a specific task (Wah Wah, Whammy...) and flip through the scenes that are configured with the pedal I want to use and not include any of the others. Or possibly controlling 2 pedals with one external expression pedal in a scene. My concern is how the pedal handles the signal for each input and if paralleling them like this to 1 expression pedal is not advisable.