The Capsize Screen Formula and the Motion Comfort Index tells almost nothing about how the reality of a boat's likelihood of capsize or its motion comfort. In fact they provide so little indication of a boat's behavior that to rely on these surrogate forumlas for real information borders on the dangerous.
I agree 100%
On the AVS - you still need to add righting moment curves, accurate displacement and center of gravity.
It's still a best quesstimate.
My big bulwark, fully enclosed center cockpit, thin (12.3 beam on a 38ft) 4.5 foot draft, Low density (lead pigs in slurry) stubby ballast should roll over if I stand on a rail. Especially considering the 300 feet of chain and 45 pound anchor, Dinghy on the davits and other weight high up (my big head) etc..
I think adding on a couple square yards of solar panels should do it.
Unfortunately the link doesn't work.