Something to consider when tankering. If you land with more than ~6T the cold fuel can cool the upper surface forming frost, the cost of deicing this if no warm fuel is available will be much more than what is saved by tankering.
Absolutely correct! Can't remember the 320, what we do on A300 is to x-fer fuel of the outer tanks into inner/ctr and refuel outer with warmer fuel. In most cases no deicing required. All on grd of course
