[Rotmilky]

Originally Posted by TrumpyAl

I'm as stumped as you. I'm a mechanic but I'd be referring the car to a brake specialist at this point.

Air in the system doesn't behave like that, it would be a spongey pedal every time, not a sinking pedal when held lightly.

You must be so frustrated!

I agree on the air assessment. I don't think it's that. But after trying just about everything I can think of, I'm grasping at straws. I've even started to wonder if there aren't things like brake termites that eat my seals.

While the problem is annoying, the brakes do work just fine for stopping on an autocross course. I don't even notice it there. So, I still use the car. If I were actually racing the car at high speeds and needing long braking distances...that would be another story.