The soup is not advised Sir

[AntEater]

Gun stabilization was invented for ships and adapted for tanks later.
Stabilized battleship guns were allready around in WW1.
A 76mm OTO mount won't work in that kind of seas, I think.
Maybe in direct fire mode at short ranges, but not ballistically or anti-air.
These waves are just too big to compensate.
Strangely enough, stabilization moved from big guns to small guns.

[Skybird]

Originally Posted by AntEater

Strangely enough, stabilization moved from big guns to small guns.

Not strange at all. Big guns = big, heavy ships = big mass = slow (though powerful) momentum. A battleship may lay relatively calm in a rough sea that would make a dinghi swinging left and right and up and down like a tabletennis ball.

[AntEater]

Big guns do not always mean big ships, stabiliziation is very important for AA guns.
The 40mm Hazemeyer Bofors mount was the first stabilized AA gun, a dutch invention taken over by the RN and the USN in WW2.

I read somewhere that the old battleships were designed not to negate the movement of the sea, but to translate it in long smooth, rolling motions which were better for the gun and fire control stabilizing systems than shorter more abrupt motions.
So a 35,000 battleship actually rolled MORE than it could have...
But that is most likely not an option for a cruise ship.
Also, it took until after WW2 before active stabiliziation of the ship itself was perfected.
Active systems, either finns or equalizing tanks, were allready put into use before WW2, but were mostly so bad they made things worse.