in view of my vision problem right now and my not so great ability to feel things with my fingers, I have decided to build one of those jigs. Watched several videos on them and they look super easy to build. they address several of my issues and make it easier to control the piece. I can then use a big magnifier to see better what I am doing. I am just wanting heads for my cane arrows to deer hunt with. I will try this on glass first.