Once I changed to a dual master cylinder and got everything back together, everything seemed fine for a bit. Then out of nowhere on the way to a stoplight I get a vibrating feeling from the disk brakes up front. It's never happened before with the jelly jar MC, and I didn't touch the brake pads since they're new. So the brakes themselves were not taken apart. I just replaced the soft/hard line. Anyone have any ideas why all of a sudden my disk brakes (factory front BTW) vibrate? It only happens once in a while and usually only when I put light pressure. I wonder if a little antisqueak would take care of it. It's just strange. Whatcha think?