Checked about everything that came to my mind. Bled the brakes according to the procedure in Cosworth manual. Checked al the caliper munts and pads, checked all the lines. The pedal still feels soft although the disc and pads are now bed in a little aetter and it started to brake a bit. I still can't belive it can be all down to DS2500's it just doesn't feel right even after some kilometrs of going at full thrrotle with lots of braking.