I had these brakes on my 2012 Jeep JKU in June 2017, about 16,000 miles. When first installed they were very spongy and needed to warm up before good pad friction developed. They got better over time, but always worse than OEM brakes. Eventually they got significantly worse, so much so that I couldn't develop enough friction to activate the ABS system. At first I thought the master cylinder was leaking, I replaced the MC, bled the system and tried again, minimal change. I replaced the pads with