Join Date: Dec 2009
Location: Gran Canaria, Singapore, Surfers Paradise
Programs: KrisFlyer Gold to Silver to Blue, Finnair Silver, Royal Caribbean Diamond, GHA Platinum
Posts: 5,500
Must be a JFK/American thing because I haven't had my hand luggage weighed at SQ check-in anywhere in the world.
I usually just take out my laptop and or a book and then re-weigh my bag when encountering this at check-in with other carriers. Then I just put it all back in later on.