There is no clutch chatter, just a noise that happens only at certain points in the release of the clutch pedal. I think if you rev the engine higher and let the clutch out it does not do it as much.

The noise it so strange I don't even know how to describe it, but you can feel a high frequency vibration in the clutch pedal. When the mechanic went with me on a test drive to show him the problem even he was baffled by the sound.