Question Author
Do you really mean it, K, when you say you've been doing the more demanding crosswords for six decades? I had you down as 'mature', but never considered you might be in your eighties! I claimed four decades, as I started on them in my early twenties and am now in my late sixties. Another three years or so and I'll have completed my half-century of such solving. Sending answer-grids in has cost me vastly more than I have ever won, of course!
My thanks for the further pleasant words and, of course, congratulations to those of you who have also had nice wins recently.