Blimey! Things must be quiet!
The map you speak of is on-line but unfortunatly I cannot easily access the url from the pc I am using. I hope to put it up later but it is of course on line at the 'other place' already [no advertising].
As you will see from its suggested coverage [based on the future bases as planned last October rather than current placings] some current areas of good coverage [Cambridgeshire and Sussex etc spring to mind] are clearly in 'no cover' spots.
The map
http://dl.dropbox.com/u/10932568/Nat...p10minring.pub