?20fcr one saves a ring spot, so I'd use it on hammerdin. 125fcr setup with spirit, that is.
HotO = 40
Spirit = 35
Trangs/Magefist = 20
Arach = 20
That's 115% there.
Means you need 10% more from either a ring or an ammy to hit 125% breakpoint. No need for the 20% FCR on the ammy - just overkill.