[s-cars] rotor clearance issue

[Lee Levitt]

I'm running Boxster calipers over A8 calipers on my C5 A6. Bracket 
is a steel one, of unknown origin (came with the calipers).

When my mechanic installed the setup, he used Textar brake pads. 
No issues with the pads, except that the inners have worn pretty 
badly. My mechanic thinks the pads are binding in the 
calipers...they were pretty well wedged in. Pistons all move 
freely.

I replaced the Textars with EBC pads. The EBCs sit *just* slightly 
lower in the caliper and allow the anti-rattle spring clips to 
rest lightly on the outer edge of the rotor. They make some noise 
on the road and will eventually wear through.

I also tried a set of Hawk HPS pads and they're just slightly 
worse, making quite a racket.

Has anybody else noticed this? On my S6 and on my A4, I have not 
seen this happen...

Should I go back to the Textars? Modify the spring clips so that 
the clear the rotor? Grind down the rotor? Turn up the radio?

Thoughts appreciated!

Lee
'99 A6 avant
'01 A4 1.8t avant
'97 A6 avant
'96 A6 avant