Alright, from personal experience: I own a 1986 station wagon and a 1973 camaro, both with front disks/rear drums. On the wagon I've had to replace the disks twice in three years due to warping, and the camaro's disks have an interesting problem. When I put the car in at night, the disks are shiny, and in the morning they have already oxidized. They grab wayyy to hard for about 2 miles and sound terrible like emo rock.