Can you give more details on how you added the mount for the front R brake calipers? You said it was based on Johanns design, but I cant find anything in his thread about it. Do you have a link?
Salt and metal just dont get along. Its gonna rust no matter what.
http://forums.t5d5.org/topic/23637-anyone-buying-fsds-look-at-this/
'?do=embed' frameborder='0' data-embedContent>>
From what I have read its Textar that is OES for Porsche , although people disagree whether the pad they sell through aftermarket venders and through Porsche dealers are identical. But the aftermarkets I used worked well for me.
Hawks had a bit more bite, but the noise drove me INSANE, not even close to worth the trade off. haha. I even bought the super expensive anti squeal dampeners that had zero effect.