Thought this was just good marketing hype. Even the package supported my feelings. Put them on my race bike and DAMN! Warm up lap had my sliding the front tire (on slicks) with just two fingers. Next few laps I was slow in all corners too much brake! By the end of the day I could brake two boards closer to the corner than before. Just AWESOME! Buy them now!
So far, so good. I am trying the semi-sintered after having used double H sintered pads previously. Braking is fine, stopping power is good, smooth and quiet. I don't know the longevity of the pads at this point.
Very good to excellent. Pads seated very quickly, no squeaking noises during braking, excellent lever feel and braking ability over stock pads. Highly recommend these for anyone replacing pads. Jury still out on longevity and dust issues but probably will not be a factor.