I disagree on the practicality of it, SoCal.
You may like to read my post again, but let me give you another example:
In 2003 I did a 250nm airways flight, in a G-reg plane, with a dual rated instructor. It is logged as a 250nm IFR flight, with 3 approaches (2 x T&G, 1 landing) and the approaches are all of different types.
In 2010 I go to the USA to do the FAA IR.
Are you saying the US based DPE is going to enquire the bona fides of that 2003 instructor? Especially given the G-XXXX tail number in my logbook?