Id recommend using cheapish discs and spend the rest on ducting. Ive found aftermarket discs to add little benefit to factory sized braking setups and agressive pads
Im with darragh,
I use carbon Loraine rc6, it's a sintered metal pad and is pretty harsh.
Brembo blanks are good as they are cheap but decent quality!
I'd avoid grooved discs as with real harsh pads and a lot of heat as they can crack.
Thank you for the feedback guys, I will take it into account.
Im thinking of just going with the PD front and rear, those are not grooved. See how that goes and if Im not happy I can always try the Brembo alternative.
I have slotted dixcel discs and have given them a beaten on the ring for 2 years and they are brilliant, Have dixcel type z pads with them. I did get them very cheap from a friend though which is why i purchased them