But, as Iunderstand it, a reduced power takeoff has procedures associated with it. One of them demands full power if an engine fails (two engine plane)
No - the reduced thrust calculations ensure that the engines are providing all of the required thrust for that take off - including enough for single engine performance. There is no requirement to increase thrust after an engine failure in a reduced thrust take off.
I suggest to boeing, that some sort of takeoff over ride switch be fitted to command the slats/leading edge devices to remain extended on takeoff. Pilot presses button prior to takeoff...hey plane, I'm going to takeoff so don't retract the slats no matter what!!!
The pilot
already presses a switch for take off - the "TOGA" switch - to set power.