Morris Ultimate Skip Nymph Olive The Skip Nymph is among the first flies many beginning fly tiers tie, thanks to the popularity of Skip's longtime best-selling book Fly Tying made Clear and Simple- and it's proven itself over the past two decades as a rock-solid imitation of mayfly nymphs and small stonefly nymphs, and a fine all-around searching nymph. It's been featured in many books and magazine articles. A dark bead blended into the thorax of the Ultimate Skip Nymph really pulls the fly down, and a touch of sparkle gets it noticed down there among the trout.