This gives me a headache every time I think about it. Should I stay as @TheCustodySgt even though from late Jan I will no longer be in custody but is a name everyone knows… or should I change to @TheCommsSgt to reflect my new role? You could argue that Comms (Communications) is what I do when I tweet. Therefore the new name would suit any role I do.
Alternatively I could keep @TheCustodySgt but change the descriptive name to The Comms Sgt??