Ooh bugger - they looked pretty OK to me, just a bit of a lip, but best try and get hold of a micrometer. Or is there an easier way to measure them without one?
Cheers, by the way.
Edit: Just a thought, that's a small tolerance on thickness by the way. the new discs are 28mm, and new pads around 15mm per side, so that's total width between pistons of 58mm approx. Pads wear down to 2mm either side, which reduces space between pistons to 32mm, 30mm if discs are also worn a mm either side. New pads go in and the space increases greatly.
I understand that the discs need to be a certain width to be effective - is that really 26mm???