Here is how I do it. I take a piece of line and tie a bead on it, then thread line through bobber, then tie on a jig or in your case crimp on a weight then sit in a tall glass of water or in the sink. That way you can adjust weight to how you want bobber to sit in the water. Then take a baggie and put that size bobber and some weights same size together in baggie. That way you can set up several sizes of floats to your liking. You change float and have proper weight with that bobber.