User blog comment:Hayashi H/Spring 2016 Event Guide/@comment-26082413-20160517154448/@comment-26486243-20160518161034

Yeah, the initial was based largely on power calculations, but it seems armoured carriers have a really rough time with branching when I tried it. Running a CVL build now.

I don't recommend the southern route as you reach boss with less than 40% ammo, so it's like... 70-odd % will be dealt of all damage values except airstrike, with only 2 carriers capable of carrying bombers, of which all except two slots is very likely to die, and you have to pass 2 BWS nodes. Northern route reaches with 100% damage potential and 3 carriers capable of carrying bombers.

Also last I heard the southern route doesn't route 100% to boss. It's pretty high, but getting offrouted is not impossible or something like that.