User blog comment:Kuras/Summer Event 2016/@comment-26715360-20160822161130/@comment-25289497-20160822164833

It is going pretty well for you so far! Good job!

Dealing damage to the boss consistently for a significant amount seems somewhat impossible indeed, the boss takes very little damage in one run and in another she gets taiha'd. That is mainly because of the 2 super tanky BB Himes.

If you want to the best out of your runs, it naturally would be better to sortie CVBs and Yamato-class BBs. If your resources allow it, you should definitely consider that. Don't forget modernizing after converting btw!

Yamato can easily get firepower beyond the day-time cap. Allowing her to mitigate the effects of the ammo penalty a bit. This is definitely a big advantage over the Nagatos. Yamatos are tankier too, but you won't notice this much since they will still be able to get one-shotted. With the Yamatos, it's certainly easier to have more damage dealt before the night battle. However, it is definitely not impossible with Nagatos either and the difference in not huge. Even with the Yamatos, I got the final kill through a lucky torpedo cut-in from Kitakami. You can compare my replays for a better comparison. ;)

As for CVBs, the difference here is quite marginal I think, though I haven't tested it out. The difference in stats between CVB form and standard CV is pretty small. The CVB's higher firepower don't mean a lot, but it helps of course. Their higher armor don't mean much either because even Yamatos can get one-shotted. They can still deal damage in Chuuha, but this will not be much either.

Concluding, if you can afford it, you should definitely use it. I would say every little bit helps, but you most likely will still have to rely on lucky torpedo cut-in snipes..

Good luck either way! :)