Howerd,
There is no such thing as irrelevant when 'brainstorming' we're all just trying hard to help out.
I realise that the application becomes refused as invalid due to no A1 test. The importance of the information is, hopefully twofold:-
1. It might be helpful in a determination of when the clock starts for overstay etc
2. It might be useful information for others
Anyway, Howerd thanks for following the thread and making inputs.