That’s pretty damning stuff; makes you wonder if such exhausting studies were ever done before the keel was laid.
I did stability and trim studies as required for merchant ship masters, but they dealt more with static situations, in which as long as the GM was sufficient, you were good to go. I never studied much of the dynamic effects relating to stability. The main difference, I suppose, is that merchant ships have the option to change their head and speed, an option not always available to warships.
The X-bow ships are successful, I now see, because they have very little tumblehome and then only in the sheer strake, and the foc’s’le is much higher.
Fortunately only 2 will be built, and are in my opinion the naval equivalent of the Air Force’s F-35.