Yes, all understood - model FSOs 5.5 / 5.6 territory.
I have a rather more "delicate" scenario which it wouldn't be appropriate to detail... I am quite sure I have the correct answer which might be different to the pragmatic answer. Both options can be supported by a reasonably solid justification and since there is virtually no penalty for deviation from strict compliance anyway, I'm not sure I'm going to spend any more time on it.
It's one of those conflicting legislation scenarios where to do one, results in a breach of the other...
As Captain Jack would say:
https://youtu.be/e4PzpxOj5Cc