I had the EBC HH pads on my bike for a while and they didn't seem too cruel to the rotors. I've sinced swapped to Carbone Lorraine as i was told that these were the best. I'm a bit disappointed as the EBC's had way more bite!!
The only problems i had with the EBC's was that they were binding. I'm not to technical but it seems that the top hole is a little too small for the 6R's calipers. Wasn't allowing the pads to move back far enough. Thus after the first few times you brake they end up permanently rubbing on the disc's.