Should i make this piece separate or combined?

hegvbwkeuyrv

this image. It's really close on the shoudler, but has a bit of a gap on the stomach. 

CarlCraft

Maybe I spend too little time in zbrush but could you elaborate? What piece? Why would you separate/combine it? Even if I may not know the answer, someone who does might be able to reply with more information.

hegvbwkeuyrv

the metal armor piece with the kevlar.