I sell a jig very popular here in Central NY state. When my father began selling them in the late 60s there was a collar (to flair the hair) that was removed some time in the early 70s as dads tying style changed. The head sizes were 5/8, 1/2, 1/4 - now of course they are all closer to 1/2, 3/8, 1/8 but we still sell them by their head size (without the oz / weight mentioned). There are some complaints over the years; I still tie and sell hundred of doz each year. As a jig fisherman my personal thought is that if you are spending time weighing your jigs, your doing it wrong.