Nice first................turtle has heard some of us on here making comments that turning the feathers back side out makes the feather lay on the shaft a little better. I really like "two fletch" using tail feathers as you did. There real quiet.......I just happen to shoot some today at a Trad shoot that some of the boys on PA went to.
Again, real nice arrow. I use a real fine silk thread sold in fly tieing shops. But that not really necessary, any real fine strong thread will work.
DBar