Slide a 3mm copper jig-off bead onto a size 20 straight-eye jig hook and mount it.
Start the fire orange thread behind the bead, cut the butt end out, counter-spin the bobbin to flatten the thread, and lay it down to just before the bend.
Take four or five Coq de Leon Medio fibers at most, pull them out at a right angle to the stem to align the tips, and bind them right on top of the shank as a short tail; if it runs long, grab the butts and pull the tail back through to shorten it.
Bind the butts forward to behind the bead and cut them out.
Counter-spin the thread again, come back down the shank and stop just before the bend, levelling out any step left in the underbody.
Cut a fine taper on the end of the PBM233 body material so the first turn seats neatly, lock the tip in as close as you can get it, and bind it down to the bend.
Wrap the body forward in slightly overlapping turns up to behind the bead, keeping it slim rather than heavily tapered, and lock it off with a couple of turns behind and a couple in front before cutting it away.
Put a little wax on the thread so the whip finish cannot slip down onto the body, turn the fly upside down, and whip finish a small hot spot collar behind the bead. Trim as tight as you can and knock any stub down with a cauterizer.
Work thin UV resin all the way around the body, keeping the fly spinning so it cannot run down one side, zapping it as you move it, then give it a proper cure.
Turn the fly nose-down, work a small wing case of Black Widow resin in behind the bead, invert it and zap it as quickly as you can, then give the whole fly one last cure.