The origin of this fly is believed to have been the N. Georgia mountains. The 'Y2K' part stands for "Yarn, Two Knots", and quite frankly, there's not much more than that to it. If I were to try to pick a fly that day in and day out (and especially in fall and winter) that tears up big fish it would be hard to beat a Y2K. A large one, small one, a micro one.....fish eat them. Even that wise old brown trout that normally rises to small baetis or midges, the one you've elevated to 'royalty' status...well, let's face it he eats eggs too. Simply put, there's no where trout exist where or when at some point they don't eat eggs. Not sure why folks sometimes get bent out of shape over using a fly like this, or an egg, like somehow it is cheating, but the fact is it is just as much a legitimate food source and fly pattern as anything you'd tie on the end of your leader. In fact, it is more a natural food item than many of the flies we fish with...tied with synthetics, attractor flies that bear no resemblance to anything that ever lived or crawled in a trout stream. You still have to make good casts, get good drifts..... In any case, this is one killer pattern...tie up a few and you'll see what I mean. It is simply deadly. Have fun and good tying!
Materials: Hook: Daichii 1130 or TMC 2457, or any wide gap wet fly hook, really doesn't matter sizes 8-12
Thread: Chartreuse, UTC 140 or 210, or Danville Flat Waxed Nylon
Head: Brass or Copper 5/32" Bead - reg not tungsten
Body: 2 strands McFlyFoam yarn or Egg Yarn, one color each side, and trimmed close and 'blocky' as shown
Tying Jeff's Bead Head Y2K
Steps 1-3 Start thread as shown behind and against the bead, building a nice thread base. Apply a drop of crazy glue to the thread base before going any further for a fly with maximum durability. Create a gradual taper of thread. I like to wrap enough thread that the bead is "jammed" against the hookup and it unable to do
Steps 4-6 Apply a drop of super glue to the thread base. Tie in one piece of yarn on the far side of the hook shank. Now repeat the step on the near side as shown. Make sure to follow the same thread path in tying in both pieces.
Steps 7-9 Gather the bunches of yarn together, make several tight thread wraps behind the yarn, pull the yarn back, then take several thread turns in front of the yarn and against the back edge of the bead. Whip finish and apply a small drop of cement. Pull each piece of yarn out perpendicular to the hook shank and trim each side as shown. Discard trimmings. End photo is the finished product.
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Tying the Split Case PMD/Sulphur Nymph
If you fish sulphur and /or Baetis hatches anywhere you need this fly in your box!