Hi, as far as I know, I don't have any mod that could change water phyisics or have Tweakscaled anything. The mods I have only add vehicle parts, and the ones that change gameplay are: Fuelwings, Tweakscale, WASD editor, Extended Hangar, mechjeb, Hyperedit, BDArmory (with a couple of expansions) SCANsat and vessel mover.
https://imgur.com/a/XQ9gD
The vessel has only parts from SM Marine and BDarsenal. I tried serveral variations (Placing the conning tower in the rear, adding a full/empty torpedo bay, a full/empty VLS hull part) and same result. Also, this version in particular has the "premade" stern, with the prop and rudders, the normal bow (without torpedo tubes) and the conning tower with rudders and no other parts from other mods.
Sorry for the late reply