Looking for an expression pedal to cover at least 3 effects - Trem Rate, Delay Mix and Whammy Sweep (My Whammy V is rack mounted, so I will control it via an exp). Looking into the Source Audio Reflex to use the Midi ins and Outs (with an RJM Mastermind) for control. Was wondering for those who use this pedal, or similar multi-function expression pedals, how do you control which effect it's expressing at a time? Was thinking that it would be preset based to control either 1 to all 3 of these effects simultaneously...though there are some presets where I have 2-3 of these effects engaged and will only want expression on one of them (i.e. to sweep the trem speed while not changing the delay mix or whammy position). Just wondering how others using the Reflex are utilizing it with multiple effects/functions.