well, I personally love risks, and booked AA's YVR-LAX arriving 9:30-ish for the 12:10 noon HX flight next month, this flight is consistently on time due to the bird sitting on the ground for the night at YVR, so I am not that worried. Not checking luggage also makes it a safe bet I believe. Hey but each person can take risks differently, and I am the type that position via HKG to SGN for the pho fare with just 2 hours to spare with CX and their typhoon-prone routes just to avoid paying for visa!