I think Harry is totally correct. With that said, depending on the time and WX, I do carry extra in order to give me more time before I commit, or to avoid arriving in my alternate with final reserve only. As an example, a KWI-DXB, arriving at peak time with poor WX, I would probably take some extra, because my contingency would be only 600Kg (5 min).
Last edited by pitoss; 23rd October 2010 at 09:04.