I know. Every time, When I got such preliminary models, I have a big discussions with some if customers about thus areas. And it is like newer ending storyThis is the problem with programs of this type, they create models with great ease, with which to obtain, at most, the hydrostatic values, but these models are not valid for the final design (construction drawings) of the ship, among several other things.
That said, I have to admit that DelftShip, with its limitations, is amazing.