18SIn Schedule (FF) no. 1 to that Act—
(a)for the words from “In witness whereof” to “usual form]” there shall be substituted the words “ Testing clause+ ”;
(b)at the end there shall be added “+ Subscription of the document by the granter of it will be sufficient for the document to be formally valid, but witnessing of it may be necessary or desirable for other purposes (see the Requirements of Writing (Scotland) Act 1995).”.