Mancunian, you are correct with your instructions.

Unfortunately I won't be posting today's selections. I had a virus in my computer and after two and a half hours have only now fixed it (with a lot of luck). In fact I phoned a computer repairer but cancelled the oppointment a few minutes before he was due to arrive - saved a few dollars.

Mancunian, re Metro tracks - when I tested the method on Sat 18 Sept it performed very well.