Originally Posted by
NARVAL
But here I feel compelled to say STOP!
Who cares about five minutes six minutes and statistical survey of approaches for the last fifty years?
Take a reasonable amount of fuel using your knowledge and experience. Never let the statisticians dictate you anything. Ask your copilot if he is happy with the fuel you decided to take. That's important.
You also need to be legal. You need at least the minimum amount of fuel on board, and sometimes this includes "statisticians dictating you", if one's employer uses such method.