And I believe that the 'temporary certificate' will then only be valid for 6 weeks ? ( that's what I was told the first time I encountered this nonsense - so I stopped right there. )
Next visit you have to do it all again, and I visit annually.
All in the too hard basket.
I used to enjoy the occasional flight in the USA, and I actually have an FAA certificate that was once permanently predicated on the validity of my current foreign licence - not any more, see above - the Anti-Terrorist policy of a certain ( unnamed here ) recent US Ex-President has certainly ruined all that, I can wait until I get home again.