When I was playing FSX, I got an idea - Why not have the Callsign go by the member ID when flying VA flights?
EE1 - Callum Jackson
The system I am designing for VA flights will give you a callsign for your flights, you wont get to keep the same one from flight to flight. Only Special Elite-Air pilots will be able to, the only two pilots who'll have a dedicated callsign will be myself and Bofum for the time being.
The logs will then show Elite-Air-01, Elite-Air-01-A, etc etc, but for every other flight it will go from EA-3 right up until EA-9999, then repeat, but adding a letter at the end. The callsign that you'd use wouldn't have the letter (that's just so the system knows the difference), the VA System would assign you this callsign when you take a flight.
There will be two different callsigns for Elite-Air (that I'm planning)
Elite-Air-# - Normal Cargo/PAX Flight
Elite-Air-Training-# - Pilot Training Flight (Probably wont be used much, so wondering if it's even worth it).