“I recognise that is (sic) necessary to strike a proportionate balance between: i) including what is strictly necessary in terms of specifying a complete cause of action, assisting the parties and/or the Managing Judge to identify potential lead cases, and providing the Defendants with sufficient information to obtain a reasonably informed view about the likely quantum of claims; and ii) keeping the exercise as straightforward as possible, so that excessive and costly queries are kept to a minimum, and where possible more detailed information be provided at a later stage in proceedings, possibly by a more limited group of Claimants, when identifying an appropriate pool of Claimants from which to identify potential lead claimants.”