BEags-I can't see why one would ever use the other 2 options for rx fuel planning but granted it is a better situation than the A330 system. Still don't think your final bracket is as automated or optimized as it could be but once again better than the Spanish product.
3Eng-so what you are saying is that the RAF has to change its procedures (for the worse) to cover a gaping hole in the capability of the new system. Not only that but the final bracket position is just wrong on the A330 system . Bit of a tail wagging the dog IMO.
LJ -I have also been there on a total replan on the day-hopefully now the tanker will be more reliable. My expectation of a planning system is that it should take the met of the day fully into account and optimize the plan at both pre flight and in flight.