Intrigued I am!
Please how is an RAF gent of WO and SNCO Mess status senior to an RSM .......? Am I barking up the wrong tree?
RSMs are WO I and, until recently at least [QR 1975 as amended], took precedence after:
1. Conductor RLC, RA Sgt Major, ASM RMAS, GSM London [all equal despite huffing and puffing by Conductors]
2. Master Gunner RA
3. GSM other than London
and then RSMs etc.
So [I am guessing] are/ were Master Aircrew somewhere in the 1,2,3 above?
You will note that, although RAF mad, my nolledge is woeful.