I have only made a few horns, but I love making them. I have recently wondered about using a artist quality spray varnish over my pencil design on the body before starting the scrim work. I have been wondering if the vanish would help hold the pencil lines, while I was working on other areas. And if it might be helpful while inking the scrim, in minimizing ink staining on unintended areas. After cutting lines and inking, the vanish could be removed with mineral spirits. Has anyone tried this?