ZBrushCentral

Rendering fibers in best render and fast render

hey guys
I’ve rendered fibers in fast render and everything is ok I get the result that I want but whenever rendering those with best render I have some isuues with that …the result is not perfect I try some settings but no change …is there any tutorial for best render or some giudes for me to render fibers in best render mod?
thanks

You have it enabled in the settings? http://www.pixologic.com/docs/index.php/Render_Palette