As Mj says, thats exactly what we have always done.
Send a copy of the Examiner certificate and when I do a test enclose a copy with the paperwork.
As I said, we have never been refused but it is entirely up to an NAA whether the accept an overseas examiner or not. It is a simple curtesy to do so and is easy enough to do. It's amazing how playing the game reaps benefits further down the road!!!
So I heard that CAE, FSI, .... are not going to do it. and if EASA disagree they will stop doing any checks until it is sorted out. we will see how that works !
Ah yes, the old cutting your nose off to spite your face ploy!!!
Like I said, I don't know what the landscape is going to look like under EASA, until I do I will continue on the way we have being doing things.