Well yeah you would put it before or after the Zoom in the signal chain.
"Make my funk the P-Funk, I want my funk uncut"
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James, are you God?

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g1x already has an expression pedal right? and it has vox and crybaby on it... (as i could remember) is there any problem with your sound? but i think it would sound greater if you really put a real crybaby on it. never tried it though...