This debate keeps on repeating itself in various threads. But it is an important subject so can you clarify a couple of points for me crewcostundercontrol?
What is meant by item 4 blablabla and are these airbus figures?
For the 737 we use 40kg per min which is 1200kg final reserve and 15 minutes additional is therefore 600kg. This gives a minimum of 1800kg, which is pretty similar to diversion fuel for most of our german destinations.
For your flights to Berlin SXF, single runway at the moment, obviously you will need an alternate. If you land with less than alternate plus final reserve fuel the german LBA requires notification in this case as per Rundschreiben 1/2007, which I am sure you are dutifully providing. Must be a lot of paperwork!