Big bulls is 100% correct on this, we only tie them this way at Archery Idaho.I have only heard of one customer saying that their loop failed them, and it just broke in the middle. If tied right the knot will not loose what so ever.Beyond that if you are worried then ask to buy the knotless loop. They are a bit more money but at least you don't have to worry about a knot comming undone. I can't remember the name of the company but they are out of Wyoming. I took this pic from the Cabelas web site, they are selling them there.