After running Z23's for a month or so now, no clicks so far, but as m2ruder just mentioned, I do get occasional (very loud) squeals when the brakes are cold. It goes away after 2-3 normal braking cycles, but it was surprising the first time I heard it.
When I first installed it I didn't have any squealing, so not sure what changed. Maybe I power washed my wheels too hard and washed away my brake lubricant?
