I usually buy my jigs already pre-made, but sometimes spray paint them with spray paint then put a coat of epoxy cement on them to keep from chipping the paint off. Lately I been using fingernail polish I bought at the drug store to paint my jig heads. The colors look better to me and I still add the epoxy cement to keep from chipping. If I was going to repaint any of the jigs that come with a weed guard. I'd just put a piece of tape around the weed guard and paint the jig. After it dried I would then remove the tape.
Just my thoughts on the subject....