The brake set up I have on GP1499 is:
Mtec drilled and grooved disks.
HEL braided lines.
EBC Yellowstuff pads.
Castrol React Performance Dot 4 fluid.
No MINI would need a better, or more expensive, set up than that in my humble opinion.
The R59 JCW will be getting the same set up, hopefully a few weeks before next years HBT V.
i had redstuf on my r59 jcw and didnt rate them any better than oem pads next tried yellowstuf which was very good from cold and excellent when hot , im now onto bluestuf and they are much better both hot and cold but a bit dustier