BEagle,
I was under the impression that "foggles" weren't permitted for clocking IF time in the UK. That may be a crock but came from an "Oxford instructor" in the US.
However, I agree that for most of the time they would probably suffice.
Finally, I know for a fact that when I was at Oxford, there were quite a large number of students who, before they started their IFR training, didn't know what the hell "instrument traffic inbound on the 20/09 procedure." meant!