User blog comment:Tadano Hitoshi/Ragtag Hustle Kancolle - Spring 2016 Event Edition/@comment-1915363-20160517150933/@comment-1915363-20160519014240

4-5 can be done with all sparkled 4BB+2CV fleet, with your strongest 3BB+3CV composition for last dance.

5-5 on the other hand costs much more because of that Re-class has the habit of taiha-ing your shipgirls, often with initial torpedoes, not to mention that it has the horrible habit of sending your fleet to dead-end after that. Would've been much easier with LBAS, but alas...