Before i say anything else firstly, good thread and guide - 95% of it is correct!
The one thing i will say is that there is alot more to disk and vane design than meets the eye - if your punting for disks to replace OE ones, generally stick with OE - the disk will have been designed for the application.
Also, is it common for you guys to suffer brake fade under normal driving in an S3? (stock s3 that is).
If so I have two questions, how the hell do you drive normally and/or how **** are the brakes?! my little 1.8T stops well and i have no complaints!