wx662,
Our wonderful procurement people decided to buy the J with no cargo handling system (ECHS or -4a) because they thought it would be cheaper and promote commonality if they lashed up the Skydel. When we got the ac this proved impractical (but predictable). It was nothing to do with Lockheed, we messed up all by ourselves. At that stage it was too late to fit the ECHS so we ended up with the -4a. That said, it has proved flexible and efficient, there are pros and cons with both systems, but on balance the -4a is probably better for the users.
As for the A400M, there is plenty of RAF LM input to this program and I have not heard of any serious problems relating to the role equipment.
As regards the original subject of this thread, the lack of drive to get RVSM cert prior to delivery was a major own goal, just like not getting external fuel tanks. However, we will get clearance soon - the delay was due to a software error in the (UK made) ADC. In non-RVSM areas I have often flown the ac at F330, where it sniffs the fuel and still manages a good TAS.