Thank you ladies & gentlemen for your input. Like watching the apprentice, I find some of these ideas are simply reinventing the same problems for the future. If you have 12 yrs on type then I believe you would find it difficult to mess up the configuration and misinterpret the guages. What we need is a completely NEW system. Surley saving 300kgs on a bleeds OFF takeoff is a complete waste of time. Surely technology could turn bleeds OFF as takeoff power is set and thereafter at 1500ft back ON again! Surley PILOTS dont need to get involved in playing around with switches during a high workload period, for 300kgs!
Lets all face it, history repeats itself; the 737 pressurisation system has not changed; pilots still mess up checklists for numerous reasons; the system (pressurisation) is not well understood during early transition onto complex types by new crews. Boeing needs to smell the coffee, spend some money and reduce the risk!