ECAM
Up linker ...you hit it on the head.. The ECAM is due to cross talk delays I think.
And yes, at CSA we only do manual entry, no uplink of load data.
I 'hear ' your load sheet / data entry cross check procedure as it was similar at EK,,, I might add none of that is done at CSA. Even the old green dot check to pick up gross weight errors ( as has occurred several times ) is not considered. Yet....