Very interesting thread. Shows that this is a subject of critical importance to all.. .. .Twas and old BCal 707 skipper who, upon being quizzed as to why he called for more fuel than appeared necessary, said:. .. ."The only time you have too much f....g fuel is when your an on f...g fire! Now fill her up".. .. .Call me old fashioned but that statment has stayed front and centre for the past 25 years.. .. .You abrogate, or the company takes away, your right to uplift the amount of fuel you want then you have immediately taken your eye off the ball. . .. .If fuel just happens then s..t will not be far behind in a world where the please explain for diversions is more intimidating than the please explain for landing on vapour.