“The Trustee’s position is that 6 months’ notice is required but, as I understand the submission, the requirement for notice arises because this is the only way in which a remedy for the breach of duty can be provided. I do not agree with that: if there is a requirement for notice it stems from a more general requirement for the giving of notice when a change of ER policy is to be adopted. The point has not been argued. If any party wants me to deal with the point, I will consider whether I should do so, taking account of any objections to that course. It may help if I provide some very provisional views which are not put forward even as preliminary decisions in principle:”