Yeah I set it up in my friend's garage on a roller-brake tester, seems strange that the ST calipers are the same piston diameter as the "normal" focus ones as the ST ones are physically larger overall

Ah well, I guess I could always try going to a 0.7" front M/C and a 0.75" rear M/C and see what that does

Either way the car still stops well, it's just my other car is a focus TDCi so I'm used to new "production car" brakes I suppose...