Try making brake ducts. Very cheap and easy to do. Basicly just zipties and dryer ducts. I have even seen pictures of an actual spoon race integra typeR with them. Just have one end pointing towards your rotors, the other either in a hole in your bumper (place for fog light, grill, ect) or under your bumper if there is enough room. Also, another cause could be that your pads heat up, you stop, but your still on a hill, so you press your brakes so you dont hit the person infront of you, then your hot pads just stay on one part of your rotor, causing them to wrap. Try to use your brakes less at that hill by just down shifting to slow down a little. Then once your engine braking has done its job, brake with your brakes.