Thank you for the reply, for which I am very grateful, though a short answer would have sufficed, without the additional aside! Anyhoo, when you get to my age, you're allowed to ask an occasional witless question . . . . Incidentally, call me old-fashioned, but logically speaking, a low number infers a slow speed, shirley? Conversely, faster speed is generally indicated by use of a higher number, as with a speedometer! Wottevah, give me another 15 years or so and I should get the hang of it. :-) P.s. Maybe you & I could play a head-to-head sometime?