Board Thread:Fleet's Prepared-ness/@comment-26315106-20151108140113/@comment-25681511-20151108160831

Since you are aiming to go for full hard, it is more important to stock up than leveling (80k~100K). Nothing is worse than having not enough resources to clear the last map on hard than having insufficient level.

If you wish to train your girls, focus on only those you will use in the last map. Assuming that it will be a combined fleet on the last map, level up Jintsuu and Teruzuki since they are the best in combined-fleet. Jintsuu has some serious firepower while Teruzuki can provides AACI.

For Zuikaku, Chiyoda, Chitose, unless you can level them up to 70/80 without using much resources, I would say just ignore them and deploy them in earlier maps instead. Earlier maps are much easier so lvl50/60 should be fine as long as you have decent equipments and lvl70/80 girls accompany them.

tl:dr = Save your resorces and train only those which are important for full hard.