Hmmm. I switched to Kool-Stop organic pads on the Formula C1 brakes of my base Turbo. I have over 1000 miles on them (1600km) and have pulled them several times recently just to check. Plenty of pad left. I can believe that lots of city riding, or MTB style riding would cause pad wear necessitating replacement at 600 mi, but I ride on country roads mostly and bike trails, so I guess I get better wear. Keep in mind I weigh 235 lbs and the bike is over 60 lbs, so combined weight is probably 300 or so lbs. I am impressed that these brakes can work as well as they do.