I already experienced this effect with 1.31 and GWX - in the second patrol I mentioned in my post above, my boat was slowly dragged down off the surface from the stern (where the flooding was the worst) - pretty much like your picture above but just the other end going down. It was pretty amazing to watch - see screenshots below:
Settling slightly by the stern:
Preparing to abandon ship:
The final moments:
I am so loving this mod.
