speedbird,
Whether you, I, or anybody else likes it, shorts slips are going to be the norm soon. If you don't like it, then do something else. Stop living in the 60's where 14 days trips were considered "short". The world has changed.
Your job is to provide a service to the customer, not for Qantas to provide you with a private jet to see the world. If you can do this on a 38 hour London slip, then good luck to you. If not, rest up and provide the same high service on the way home. That is what you are being paid for!!