mcdhu:
That's interesting; unlike you I can sign Belgian and Swedish licences.
Strangely, I could sign Dutch and Swiss licences BEFORE they became JAR compliant but not any more.
Common licence my foot; the whole set-up is a farce located in the middle of a minefield.
As someone else has already said, getting all pilots on to a common (in this case UK-JAR) licence makes a lot of sense.