I've tried EBC standard (long time ago) and various HH pads. They all seemed hard on discs. I am now on normal Ferodo pads and they seem a good mix of braking and wear.
+1 for the ferodo platinums as supplied by James Sherlock down here in the south west. I was well impressed with them especially on a recent track day at pembury where the GS outbraked pretty well everything. very reassuring.