Really? I've never considered not using it
I tie the wool inside the bait loop using a simple overhand knot, so pulling on the wool loosens the loop, and roe change is dead easy...
Overhand Knot:
The trick is when tightening the knots, you have to tighten on an angle, as the knot will want to tighten sideways on the line. Tighten in the opposite way the wool wants to go, and by the time it's tight, it will sit properly on the line. It will look like a "+" the horizontal part will not be on an angle.
Then you can tie on the second color, and do the same, and both will sit properly on the hook when the roe is cinched in there. I'm sure however it goes on there will be fine, I am just anal
For those who do not tie bait loops, here is a video to guide you:
http://www.youtube.com/watch?v=CnCqtoku-XEThe way I tie them is almost the same, but the last two steps are reversed. I thread the eye last after wrapping the loop around the hook.
Anyhow, I hope this works for you...
Nicole