Dress regs are pretty specific, and not based on personal feelings.
0701. Only authorised RAF badges (including aircrew badges) are to be worn on RAF and PMRAFNS uniforms
and
c. A foreign flying badge is not to be worn with RAF uniform. This regulation does not preclude RAF personnel from accepting the presentation of a foreign flying badge
are both to be found here:
RAF - Uniforms
I presume QRs will have the gen.