"if you want to fly on another countries register and rules outside of that nation you are going to be faced with an element of inconvenience. If you don't like the inconvenience you operate under your own national regime."
Quite so Bose, however it really is a case of weighing up the relative inconvenience of obtaining, maintaining and using the European IR versus the US one. As far as I am concerned the US route wins hands down in the convenience stakes - it is just so much more user-friendly.
SB