After the main wrap is down, in this case I used black with a silver spiral for contrast,

I'll cut a appropriate length of the metallic silver and dip the end in a small puddle of thin CA I made on cardboard. With the aide of a toothpick, I'll stick the end to the blank tight to the wrap. I glue the ends down on the bottom side of the blank (guide side on fly and spin rods).

After a few seconds, when it's dry, I spiral the thread across the main wrap. Trial and error are used in order to finish the thread on the bottom side and evenly space the wraps. Once I have it where I want it, I'll do a single wrap around the blank and tack it down with CA on the toothpick.

Cut the tag end

And

I have always used CP, so at this time I would apply that. If you use CP, you may have to adjust the spiral before it dries.
Chris
