BDiONU I am fairly certain that they were under military control in 1 of the north sea training areas. I say 'fairly certain' because I'm thinking back to about 2 months ago and although I'm pretty damn sure about it I don't want to misrepresent the people involved if I've remembered incorrectly the report. (Infact, I'm adding this after, I remember the mil bod calling my coordinator about it (and being a little defensive too)).
126.825, despite the fact that I can legitimately have traffic at the lowest flight level I do take your point about added caution. Belt and braces, etc and why not! Like you say, saves us filling forms in ! Unfortunately I think that in the airspace in question, the bases are so high that some companies may push their aircraft types just up into CAS just to receive a better service. Even more reason to make damn sure they get that service to my mind !