I just got a set of double lines for the front brakes and I'm going nuts getting all of the air out. The front master and both calipers were bone dry when I started. I bench bled the master and hooked the lines up at the top but when I start pumping the lever, it seems like it sucks air from the line. I also tried to do the lines one at a time. Better luck but still not right. I'm open to suggestions??????????????