Make a decision man...You are the Stn Cdr's representative! I did my SDOs/OOs in flying suits - I'm not on parade - the defaulters are.
That attitude has never done me any harm in the RAF. Of course, I have changed into my No 1s to tell an airman his father has died - that's just common courtesy.
If you don't like the rules then get promoted and change them, that's what I did. Being Duty Exec is much better as you can wear your best slacks and jumper and get the SDO to run around
LJ
PS I also wear my brevet on my CS95 and my RAF leather jacket with my blues - heaven forbid!!!!