Well it is the consensus of opinion that putting drilled breaks on my Zed is a bad idea. I received many posts on this forum and others and several private emails most were negative about the idea. I do not track but I do like to zoom around the mountain passes here in my area of the world and the brakes do heat up very badly at times. I can not afford to convert to a big brake kit with the associated larger wheels and tires so I yield to your expertise and I will put better pads on, but forget the drilled rotors. Thanks for all those who gave me advise.