But, like the real life 101s, will have poor seakeeping qualities due to low freeboard (in fact it will be worse here since it's significantly more top-heavy). This doesn't mean that you need to go back and change this, but it does mean that every subsequent design will at least make incremental improvements, just as what occurred in the real-life large frigates that replaced these ships.
You really think, a ship like the destroyer Hamburg with nearly 200 missions overseas had poor seakeeping qualities? What do you think about those engineers who designed the ship, they took their plans from our beginners forum or what? I'm very sure the ships only looks that unstable.
Btw, my 1946 destroyer is reduced by one deck...
@Gollevainen: thanks for advice, I'll make it correct.