User blog comment:Shinhwalee/Guide to Power Leveling Heavy Cruiser (CA) in World 3-2A/@comment-203.106.150.222-20150619070307/@comment-84.90.161.45-20150712214935

Give best double attack setup to flagship (Prinz Eugen's SKC34 guns are perfect for this, otherwise 20.3cm nº3) and skimp on gun power for escorts (15.5cm main/15.2cm main + 15.5cm sec). The point is having the flagship with double attack AND more firepower than the escorts, while the escorts focus on day cut-in attack + accuracy equips (15.2cm main gun).

It's OK if the BB(V) has more firepower than the flagship, as long as it is limited to a single attack per shelling phase. That's why it should be equipped only with RADARs, also to provide much needed accuracy when her morale is in the mud.