Did my 4th "pad slap" today at 62,000km (38,500 miles) on the original rotors.
The last set were EBC supreme, they were on the metal at 16,000km (10,000 miles).
That's about average for all 4 sets, minus the originals which lasted 20,000km (12,400 miles). The 2nd and 3rd sets were also OEM...