Thank you ajb95. When one posts on an open forum then one must be prepared for likes and dislikes and rather like Kipling's advice on triumph and disaster treating those two impostors just the same. I did wonder what you disliked about my post and now I know it was nothing. I am grateful for you to have taken the trouble to point that out.
I think one of the drawbacks of our mostly excellent forum is that we cannot appear to undo reactive symbols once given , perhaps over hastily or in error.