yea... unless you wear the No 3 often, then it matters i guess.
In fact, I don't think anyone would fault you if you didn't wear
the red backing (assuming you are suppose to). I've seen senior
infantry commanders not don on the red backing... and some do... so
the standard is yet to be fixed i guess. unlike the commandos where
all wear the airborne wings with the red/yellow backing. yellow for
instructors.
