Brake Discs and Gear Levers

Couple of questions for the oracle that is the ksrc-au knowledge base..
Question 1)
Have any of you guys had any experience with S3 Performance Brakes?
I'm looking at getting a set of these for the track bike and wanted to see if I'd be saving money or end up spending more if the rotors are crap.
http://s3performance.com.au/disc-rotor- ... mk4o6b3av5
Question 2)
I'm thinking of going reverse shift (aka GP shift) on the bike. Is there any way of doing this without grinding the front sprocket cover?
Cheers,
TB
Question 1)
Have any of you guys had any experience with S3 Performance Brakes?
I'm looking at getting a set of these for the track bike and wanted to see if I'd be saving money or end up spending more if the rotors are crap.
http://s3performance.com.au/disc-rotor- ... mk4o6b3av5
Question 2)
I'm thinking of going reverse shift (aka GP shift) on the bike. Is there any way of doing this without grinding the front sprocket cover?
Cheers,
TB