IHC if your Uk licence is not valid in every respect then your FAA ticket which is really only what we in "Euroland" would call a "validation" is not current.Your FAA ticket only stands if supported by a completely valid Uk licence as clearly stated on the FAA piece of cardboard.Of course in the UK FAA licence holders (or any ICAO recognised licence) are free to exercise private day VFR priveleges without any fomalities whatsoever subject to their licence being valid in their own system.So no real difference except the FAA have introduced an additional piece of bureaucracy,so much for the land of the free.I believe the Canadian PPL never expires and has no recency requirements so is a very useful licence to get as a "stand alone " ticket.Any of our Canadian friends like to comment on the accuracy of this!!?