Chris,
I dont personally like using miscodes but it is the only way to identify some aircraft that use the miscode all their life and users pass them to us all the time.
All codes go should go into the database update thread and we then can add them to the d/b and mark them as a miscode in the CO field whre a hex has been identified as associated with a particular aircraft. The aircraft are probably not ADSB equipped and will not appear on the network but would be available to you locally.
I would suggest that well more than half of the codes that come up on the updater screen each day are miscodes. As you are aware problems can occur when the real holder of the hex comes up but as you are in South Africa the chances of you picking up the correct one are remote but it has happened to you in the past.
Alan
Alan