Points all taken gents. I wasn't particularly concerned about what had been written before my post, more that as the thread developed other things might have been discussed - it's happened before, and as quickly as the Mods might shut the thread the damage is done (Google cache anyone?) Best to draw the line I thought, or at least highlight the potential for inadvertant disclosure, since it doesn't necessarily take a disclosure of PM material to be a problem. In forums (fora?) like this the way open source intelligence works is for people to string lots of little bits together, make a couple of assumptions and then get pretty close to the more closely held information.
Whatever.