they recommend that YOU file the pads 45 degrees, this is amazing to me, you would think that it was done at the factory stage if it is better, then sold on to the customers.
just a thought about drill disc marking your pads, can they be fitted the wrong way if this is possible? don't know just a thought!
the other thing about brake pads wear is that since asbestos was removed from the pads for health reasons all pads manufacturer had to change their compound and this sometimes gives a squeaky noise depending on weather conditions, i remember having just had the discs and pads changed I was seating in slow traffic behind 3 old small fiat cars and everytime we had to brake the only car that squeak was ......my Boxster!!