FWIW I have had ongoing problems with my 1200.
I have tried cheap pattern discs; they warped.
I have tried EBC discs; they warped.
So, I have bitten the bullet and replaced with WMB ones on the understanding with my dealer that the 2 year warranty on the discs will be honored as and when they warp again - in my head that seems the cheapest/best solution
Andres