I can't run my G70 without an FC-7. At minimum, even for live playing, I need sustain separate for upper and lower, Leslie F/S, UPG advance, etc., and for arranger playing I use the 1-4 switches to change variations, and two sustains and a Leslie F/S.

At times, I can go whole songs without taking my hands from the keyboard... Nirvana!

You can't have TOO many footswitches!
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An arranger is just a tool. What matters is what you build with it..!