So why does it seem that the 744 is in a "hurry" to get rid of its trim fuel? I mean don't they want as much Aft CG as possible within limits? In the Airbus, there is an AFT CG target and as fuel is consumed during cruise, the CG moves aft a little and the FCMC then transfers trim tank fuel forwards bit by bit to get it back to the Aft CG target (minus half a percent).
As I write this, I begin to come to my own conclusion, maybe the 744 does not have a CG control system using fuel transfers in its designing stage while the Airbus has.
Bellerophon, sorry, my post is about 1 minute after yours ( I was typing still while you posted it) and to some who didnt notice that, it might seem i have not taken into account your informative post. :-)