Originally Posted by Adrian
I have likewise never had a non-slip loop fail - yet. The number of turns in the clinch portion of the knot is important. I also make sure that the tag end passes back though the overhand knot in the same way it exited after the clinch turns are complete (if that makes sense).
I'm in the same boat as Adrian. I even use this not with 50 pound fluoro shock tippets, and there has never, I repeat never, been a knot failure.
Like someone else has already said, confidence plays a big role in all of this.