Join Date: Feb 2013
Location: SFO, MNL, SIN, HAM
Programs: UA GS, SQ PPS, IHG Plat Amb, Marriot Gold, Hilton Gold, Club Carlson Gold, Accor Plat
Posts: 489
After passengers brought everything but the kitchen sink as carry-on, AirAsia has started in some airports to police carry-on at security: If it looks big, you might be sent back to check-in counter. I've even seen small scales at security to weigh it. Backpacks are less likely to be weighed by my observation, rolled carry-on more likely...
Don't know about Lion.