I wouldn't know what the wear limit is on these in the first place...lol...It's not like my old garage days when I could look it up in a book based on year make and model of the vehicle...lol.
I'm just going by how it feels and it feels like it's time...lol.
I have the hydraulic calipers on it and you can see the pistons are projecting a little more than they should when applied, so now it's time...lol.