Originally Posted by raiffnuke
The coating on the Zing-it will wear off some after use and your prussicks will not tend to slip as much.
Another option that I prefer over prussicks for a CRL is the Klemheist knot. I find it holds better. Keep in mind that it is a directional knot and will only hold when pulled from the correct direction.
This is the method I use. Wrap 5-7 times works amazing.