[s-cars] Camber Plate - Spring perch hits fender liner

[RubEric at aol.com]

I have installed the 2Bennett camber plates on my S6 and they are  performing 
as expected. Since installing, however, the lower spring perch(s)  seem to be 
hitting on the fender liner when driving over a deep swell or  something 
causing full suspension travel.

The result is a VERY audible  thump.

I vaguely recall 2 Bennett advising that a modification is  necessary if this 
happens or to prevent it but I don't recall what that  modification entails. 

How did you solve it? Any BTDT on this one??  
Have you experienced this?

Tia, Eric
S6, Big reds, 18 inch Avus,  chipped, Digital boost ga.