i noticed that my brakes were acting funny at times. everything feels smooth, and no funny sounds (i put new rotors/pads a few weeks ago), but sometimes when i hit em rather hard and it catches on at the end (like if i had pressed the pedal even harder, when i didn't). it did that before i changed the brakes/rotors as well, so i know i wasn't the cause. does anyone know what that "catchy" feeling can be caused by? thank you.