“ The most significant change in emphasis of the new Rules is to require courts to be more ready to make separate orders which reflect the outcome of different issues. In doing this the new Rules are reflecting a change of practice which has already started. It is now clear that too robust an application of the “follow the event principle” encourages litigants to increase the costs of litigation, since it discourages litigants from being selective as to the points they take. If you recover all your costs as long as you win, you are encouraged to leave no stone unturned in your effort to do so.”