This is how I tie on a nymph using a Perfection Loop versus a Non-Slip End Loop. It's easier, faster, and just as strong. As an added bonus, the end result produces a smaller knot and it's easier to control the size of your loop. I've even used it for streamers when I'm changing flies often to find the one the fish like. I use this loop for a dropper from a nymph as well as for something like an emerger tied behind a dry fly. Let me know what you think!