I've tracked 997C2S with steel brakes and PCCB respectively and found no difference in my track times, and I did not feel steel brakes inadequate or less feel.

I loved the no brake dust of my PCCB then, and that will be the only reason to get it in any of my future Porsches, but very unlikely.  Will rather spend that money on another watch. 

I could not feel advantage of the so-called less unsprung mass during track or road driving.


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Tim

2010 997.2 GT3RS;  2008 Cayenne Turbo;  2006 911 Club Coupe;  2016 911 GTS Club Coupe;  2015 Macan S