User blog comment:Shinhwalee/Guide to Power Leveling Heavy Cruiser (CA) in World 3-2A/@comment-50.101.207.73-20150602234445/@comment-25784159-20150602235922

they are both good

FuMO: have extra firepower but lower accuracy (sorry for being an air radar) and LoS (more LoS = more chance for double attack)

type 32: have higher LoS (even though it's just 1 point), higher accuracy but add 0 firepower

if you dont have type 32, just use FuMO