Well I really should not have worried. I packed as lightly as I possibly could but my hand luggage still ended up weighing in at around 9kg. Admittedly I was slightly fretting as I checked in but no one even gave my hand luggage a second glance.
When I was boarding the plane I was gobsmacked. Some people had 3 or 4 pieces of hand luggage with some as big as check in suitcases and no one even said a word. I'm certain that some of the cases I saw must have weighed 23kg!!