I just bought a Bird Falcon yesterday...everything is fine except i had problems with the scrub brake sysytem....i almost have to put the foot pedal to the ground to even get it to slow down...i replaced the spring with a new one and it still has the same problem. The scrub pad flipped a couple of times over and locked the back tire up?? is the foot pedal too long?? should i try to fix the scrub brake system (any ideas) or should i try to change to a different system and what would you recommend?