User blog comment:Kuras/Fall Event 2016/@comment-29735334-20161122074512/@comment-25289497-20161123144231

I definitely think the Hiryuu-Souryuu combo will work much better. Both the northern and southern routes are quite similar, with the southern one having Flagship Wo Kais and the northern with strong enemy CAs. Since you'll encounter several air strike nodes regardless of chosen path, you may want to have that higher air power. Naturally, they provide more firepower too. Both paths are of the same length as well.

PS. I am still stuck at E-4 final kill.. Meanwhile, I have locked quite a number of ships to this map. Sadly, I've had no success with any of them. :/ I will probably just start writing my "guide" on E-4 phase 1 (TP) for now. I intended to do the two phases separately anyway since those're quite dissimilar.