Never heard of that, will have to check it out. I use nylon string and synge the ends instead of tying knots in it. The knots keep you from being able to untie them with one hand with a slip knot.
We use to put out 200 every Sat. night when I was in high school and had to be home in time for church, so time was important when picking them up.
This post was edited on 3/4 at 9:47 am