It is definitely a pad issue.
The EBC's, Mintex and KVR's simply create too much heat for the stock sized rotors.
I have found that the Bendix Titanium fit the stick rotrs well in that they provide excellent braking yet do not cause brake warp issues.
People probably think I am biased about them, but you only have to read the testimonials of other CEGer's to see that I am not telling lies.