Originally Posted by
redvelvetmartinis
3K/JQ is fairly stringent on their hand luggage - but they always weighed at check-in counters, and not at passport control. The most I've seen is checking for size at the gates, but that's only happened once on all my 3K flights.
TBH, I've never noticed an additional area at passport control for weighing bags - didn't even know they had one?

This was a few years ago. There was a contractor set up off to the side to weigh and tag bags. I haven't seen it recently.