How's the sound on the z36s'? I find more carbon fiber makes more sound.I use Sonax wheel cleaner. There is nothing else out there that is as good. A little over a month ago, I changed up my z23 pads for the the z36 pads and the braking is quite a bit better. Only a very, very slight bit more dust but really, nothing to worry about. The front pins that they include for the Brembo's fit fine. The rear pins are too short and you have to reuse the stock Brembo hardware for that.
At first I had initially thought my rotors were warped but in checking them closely, there was some simple glazing on them. That was easily remedied when I broke the pads in with about ten 60-10mph quick hard braking runs right in a row and then about 10 minutes of driving without using the brakes to let them cool. I had a nice bluish tint on all of the rotors and no wobble at any speed when braking. I found the braking with the z36 pads to be significantly better than the z23.