Not to hijack but..
I've had a NEW stock flywheel installed, and NEW C.F. II 11.5" with new P.P and T/O bearing.
6-8 months later.... chatter. Vibes though the clutch pedal and a case of the "herky jerkies" when first accelerating and a little bit when decelerating too. Stock clutch was also doing that when the T/O bearing started knocking.
I find that reving the engine to about 1000-1100rpm and carefully massaging/slipping the clutch's "sweet spot" when first taking off from a stop eliminates the majority of the chatter.
However, I hate doing that and I just wanna lock the dam thing up ASAP.