I just changed my master brake cylinder and I'm not very impressed with the difference - almost no difference. I can push the pedal almost to the floor but the brakes are effective. What gives? I'd expect to have a harder pedal, there is no air in the system but if idling and my foot firmly on the pedal it will continue to depress slowly until it bottoms out somewhere close to the floor. Any ideas? Some trick that was missed or is that just the way they are?