I live local, and know a couple of the lads that work at Compbrake, they rate thier stuff as good as AP.

They have said that under independent testing between Compbrake Kits and the nearest AP kit, the Compbreake kits have less flex on the mounting brackets etc.

Sounds impressive - but its personal opinion on weather you choose AP and pay for the name, or the equally as good Compbrake kits.

Saying that, I do have a set of AP6600's on mine at the moment (330x28mm discs) but I wouldn't say no to a Compbrake kit