Talk:Ship Class/@comment-110.136.135.200-20150308063849/@comment-25999494-20150308064428

depends on the circumstances and needs..

i think it's better to have a kai'd subs in order to clear world 6-1 and to clear its monthly as well.. it's also helpful when you are trying to clear the weekly world 4 boss using all sub fleet..

if you don't intend to do all those i mentioned above i think it's better to leave them unkai'd.. since they have faster repair time and lesser ammo consumption.. you can also use them as a punching bags for 3-2 A and 5-4 A grind since they have low repair time, although maruyu is much more preferable for those grinds..