My Lords, either there is a realistic power to vary the rate—I can see that there are some arguments in favour of that, which found favour with Mr Sumption, as he then was, when sitting in Guernsey—or it does not have any real meaning, as is the case following the decisions of the Court of Appeal. Although flexibility is desirable, if it is meaningless and if we as a legislative body decide that we are not going to overrule any decisions of the Court of Appeal, the noble and learned Lord, Lord Hope, is absolutely right about being accurate in the way that we legislate.