Edit I figured it out happy Zbrushing
I have figured out how to use fibermesh with micromesh. I have experimented with insert brushes and micromesh and getting double sided effect with the insert brushes with micromesh How can I get the same aqffect with fibermesh and micromesh? here’s some pics in what i mean 
with fibermesh and micromesh and insert brushes with micromesh 
Whole model with micromesh 