Gobaliser
The one piece rule that has been in operation in the UK since August is the rule that should now be applied across the EU after the new EU-wide change last week. It does have the advantage of being simple to understand and simple to apply.
In my experience, C class pax can still take 2 pcs.
As ever, the UK knows best and is out of step with the others.
Avman
Turkeys and Xmas come to mind.
The UK must be losing a lot of transfer traffic.