Sounds good I'll attempt some hard braking back-to-back from high speeds. It's actually really hard to do that in tokyo area but i'll find a way lol.
The brakes setup is pretty new, like no more than 8,000 kilo's on them. I've definitely encountered surface rust from washing the car or rain, but nothing like this. It was like flooded the same weekend I washed it though and drove through some pretty deep puddle but thought it would have dried out by the time I got home. I hope the rotors are not warped. The rust is only where the pad met the rotor overnight. So when it hits that lifted rusted spot, you can hear it and feel it when braking...
Thanks for the advice. It sounds salvageable!