Board Thread:Fleet's Prepared-ness/@comment-5728384-20180418020454/@comment-22647381-20180418063030

300/30/400/300 may be the most cost-efficient way to construct Shoukaku but LSC definitely has a higher chance in obtaining her. I constructed my Shoukaku using that recipe a few days before the start of the last event but still she done an exceptional job in E-3. (I didn't manage to finish E-7 though)(Also I don't have Zuikaku...)

I obtained Akashi at 1-5 a few days ago I think it's also the most cost-efficient way to get her. 2-5 and 3-5 use too many resources for an effective sortie. But of course, if you want to level your DDs and CLs at 1-5 then you probably won't want to farm at 1-5 too much because the boss node inflates your HQ level and the map will become significantly harder once you reach HQ level 80.