There is only one sensible reply on this thread from someone who has read and understood the question - Sciolistes in post #5.
Let's see - we have:
worrying about retracting flaps with a double engine failure after take-off on a twin jet??
worrying about fuel dumping on a 737
worrying about flying into a hill where none exists
The answer as given, eagle, is stick to the book UNLESS there is an over-riding reason not to.