I can still buy DS11 material pads for mine from Nismo in Japan. They are only $140 a pair and last better than the local stuff I have tried.
At Sandown last time I ran a freind took the sunny for a run and it took him a lap to get the material up to temp. When he came into XR8 corner, the brakes were barking. He locked up and went all the way across the Kitty litter
He was a bit more cautious after that. The next time into turn one he was able to make his face start to peel.
DS11 material may be old but it is good asbestos based pad material cough cough wheeze. (Its my mesothelioma playing up)
Which of the later materials is closest to DS11 in performance?