Quote:
	
	
		| 
					Originally Posted by Quadcammer  the theory is that the stock clutch disk has no springs on it and when that is combined with an LWFW with no dampening, you transfer a lot of vibration back and forth between the tranny and the crankshaft. | 
	
 
agreed.  i would suppose as a racer you're rev matching pretty well so the shock to the driveline is reduced and maybe that would explain why you haven't had trouble.