For the rear brake : the cable hanger is on the shocker : When the suspension moves, the shocker moves too, and the cable hanger is going nearer to the brakes caliper.
The cable hanger has to be on the swing arm !
I understand why cannondale had developped the Force 40 braking system : It would be a problem to fix the cable hanger on the swingarmâ€¦
The rear brake hanger is effectively fixed to the swingarm. If you study the pics, when the rear shock compresses the hanger doesn't move in relation to the cantis. Still doesn't explain its stated poor performance though. Ahh but if you study the pics really closely the shock and hence the cable hanger will move in a slight arc during compression. Thats why the brakes don't work. Problem solved. Off to bed