ZBrushCentral

add stitch on 3d object surface with custom brush.how to stick the stitch to object..

hi everyone
i am using zbrush and try to attach or draw stitch on 3d object like pants…
i am facing some problems…help me…
first things is the stitch disappearing from object surface if i fix it by pulling out the stitch disappears from another part of object.
second stitch is not fully attached to surface of object there is a distant between stitch and object which make it look bad…how to fix it…
i am attaching some photos so you can understand…
thank you very much

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