Zuki. I honestly wouldn't recommend recording 'silently' on the camcorder. Although you won't actually use it, it helps having the original audio there to 'line up' the flown in audio to be in nice and tight sync with the video... It's kind of hard to slip and slide the audio to a video track without the reference.
JMO...
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An arranger is just a tool. What matters is what you build with it..!