World's first revenue flight on 100% synthetic fuel

[gravity enemy]

Qatar operated the first revenue flight on a gas-to-liquid kerosine.

Qatar Airways makes world?s first gas-to-liquid-fuelled revenue flight (http://www.flightglobal.com/articles/2009/10/12/333255/qatar-airways-makes-worlds-first-gas-to-liquid-fuelled-revenue.html)

Are there any special procedures for such a flight from the sharp end's point of view? What are the FF's and savings?

[nicolai]

The article says
The A340 substituted for the regular A330 on the 6h flight, with all four of its Rolls-Royce Trent 500 engines to be powered by a 50/50 blend of GTL and Jet A1 kerosene.
so I'm not sure where you get "100%" from this time. Of course the question is still good to discuss, as to whether using synthetic fuels instead of refined-crude-oil fuels will change in-flight operations.
One difference of higher density is already noted in the article, though refined-crude fuel density already varies.