Many thanks Asturias
....from mates on the coal-face..
Check-in queues likely to be around thirty minutes building to over an hour as the day moves on.
Self-service is obviously the way to go...unless the airline system picks you out at random for a face to face with check-in staff.
Hold baggage is only an issue ..
a) if the baggage "system" breaks down
b) you arrive last minute, due to the journey that the bags have to make.
I hope that helps any other guys and girls.