Question for you Knot Gurus. Will a Prusik knot made out of Tech line hold ok on a Zing-It line. I don't have any Zing-It yet, but its on the way. Is the Zing-It too slippery for a prusik not to hold. What I am thinking about is using the Zing-it for a tarp ridge line and the prusiks holding the tarp onto the line.