"484. To my mind, by the time of an FDR each side should have identified the building blocks of their respective cases. Indeed, the assessment of them and their product is at the heart of an FDR. So the process of considering them should have started well before the FDR, and reducing them to writing after it should not be a burdensome or particularly expensive task. In my view, it will often be very helpful to set them out in an exchange of documents, and therefore I invite practitioners and judges after a failed FDR to consider carefully what should be done to clearly identify the building blocks of the cases advanced by the parties. I also invite the parties to consider setting them out in writing in an open form before an FDR."