User blog comment:SlashZero/Spring 2015 E-5 Hard Boss Pre-final & Farming Composition/@comment-37.201.226.56-20150506214557/@comment-861160-20150507032607

I think double attacks are super useful in the first and last battles, and I haven't really noticed much correlation between hitting B and success rate at the boss (however my sample size is still only 18 runs ATM). I would definitely at least give the flagship a seaplane since flagship position benefits from increased artillery spotting rates.