My lude has been having some very annoying clutch problems lately. When the car is cold the clutch pedal is at the normal height and requires a normal amount of force to depress it. Once the car has been driven for about 15 minutes or so the clutch will become very stiff and the catch point seems to have moved further up on the release stroke. What could the problem be? Just FYI, I have a Spec stage 2 clutch with Fidanza alum flywheel.

 

did you bleed all the air out the lines?