Thanks again tdracer! I'm beginning to sound like a broken record. I hope you hang around on this thread.
Your point pins down what I tried to tell swh, but I lack the technical expertise to use the words and facts you do. On some level, what you wrote is intuitive to a thinking pilot like myself. That's how I knew swh was completely wrong to use the data he did. So I am grateful for someone on your side of the pond who actually works in the programs we like to banter about.
One of the biggest problems we have at CX is a bunch of smart guys who are bored with the job of driving airliners. Most of us just accept the job for what it is and have other parts of life define us. But there are some, usually in training or the fleet offices, who like to make stuff up and show colleagues how smart they are. Swh's display here is all too common at CX. I'd bet my firstborn he is a training check captain on the Airbus and perhaps even in the Airbus fleet office, A350XWB lanyard on proud display.