User blog comment:Shinhwalee/Major Event Preparation Guide for Admirals/@comment-16545476-20150426150908

You might lead to some confusion with the contents of Nagato class BBs introduction. Apart from Haruna who's got the lowest firepower (96) and Kirishima boasting the highest (104) in FBBs, the average firepower of the remaining Kongou K2s are around 98, which is only one point less then the two Nagato classes. From past experiences before the gun penalty system, that 1 point of raw status itself doesn't really make a lot of a difference in the overall performance if both the FBBs and the Nagato class BBs were equipped with the same guns. (That's why there used to be a trend before that claims the Kongou class FBBs works just as well as the Nagatos in overall performance and the two Nagato class BBs were simply useless.)

You might want to add that the Nagatos gain an accuracy bonus when equipped with the 41cms and suffers less penalty from the 46cms when compared with FBBs that runs with the same setup. Being able to equip better guns with noticeably less penalty is the main reason why these two have a much better firepower compared with the Kongous at the moment.