Talk:List of battleships by upgraded maximum stats/@comment-7401186-20150615034227/@comment-26486243-20150619122406

The first dissimilar aspect is ship speed. If your entire fleet has Fast speed, all ships gain a buff to Evasion, which directly reduces the amount of damage taken, particularly for very long sorties when your ships have only about 3-4 ticks of fuel left by the time you hit the boss node.

You could leave them unremodelled, but that sacrifices the initial strike capability and contribution to air superiority they can give, and the battleships will still be at Slow speed.

The other dissimilar aspect is that the Ise class can mount up to 41 cm guns without overweight accuracy penalty, while the Kongou class are limited to 35.6 cm guns.