The Smaller the better
Has it not occurred to anyone that one of the reasons for long queues when at security, is the need now to x-ray and screen one if not two pieces of HOLD luggage for each pax, plus handbags, manbags, hats, coats, boots and sundry other pieces of electrical an photographic clutterbuckery that is essential to carry on to the flight.Reduce to one "small" bag per pax, it would reduce the queues at the gates as well.