If you install CFT tanks, the jet consumes fuel from all tanks at the same time. Apart from the fact that it gives a compatibility error when you put the CFTs with radar missiles.
Even if you mount the CFT, the amount of fuel is the same as without the CFT if you do not manage to cover the 4 slots for the CFT.
You also cannot mount fuel tanks on the wings or in the ventral position if you want to be able to carry radar missiles.
You also cannot fire the missiles or flares while carrying the bombs without having launched them first, although this has already been reported.