Always bear in mind that whatever range of sight you have, the ships have also.
Similarly if you were to up the damage rating of your 20mm flak for example, the same rating would apply to every 20mm gun in the game.
Now the argument about large platforms being more noticeable than small platforms takes another twist because the game engine takes so many parameters such as sea state, light conditions, cross dimensional profiles etc. I sometimes think the game engine struggles a bit to 'get it right'.......we use what we have available to us