Bookworm,
Looks like you have another different interpretation of the regs. I find it hard to believe you could say that FAA regulations do not apply to an FAA certificate holder flying an FAA registered plane as soon as that plane leaves US airspace.
IO540.
In one breath you are telling me that I have to follow 91.703 (a) (2) when in the UK, the next breath you tell me part 91 does not apply in the UK. By your logic I can just surely ignore 91.703 (a) (2) when in the UK.