Yeah I wasnt a fan of the Stoptech's to be honest. I really like the T2/Intima combination. Perfect for the street. Lower dust than the stop techs, no squeal. Brakes very well. Although if you are into really spirited runs in the twisty roads, be aware, once they reach their heat threshold, brake fade sinks in quick and you have nothing left. Only rated to 400deg or there abouts. I took them to that limit a few months back so know what it feels like.
The SR pads are rated to 650deg I think and will be better suited to hard hard braking in the twisty roads at the sacrifice of dust though. But bite very well I have heard and will handle hills runs without issue. Horses for courses really. If predominantly you just want a real bitey very good street pad with zero intention of pushing super hard in the hills very often, then the SS pad is great. I still can push in the hills but not on the limit.
Yea, I generally don't get my brakes that hot, but I have had the car on the track. That is one time when brake fade is not an option. The stoptech's performed brilliantly. Chewed up my rotors, but never let go. Got so hot that the rotors were actually smoking when I pitted.
I just find that they leave a residue on the rotors so it always feels like my rotors are not even. Takes a bit of hard braking to clean them up an smooth out the braking. I am guessing this would actually be better with slotted rotors to wipe the pad clean as you use it. Would love to find a pad with good bite and heat ratings, but without the massive amount of dust.