Thanks for the comments. The cap is sprayed with Krylon then sprayed the whole arrow with clearcoat. I suppose dipping would have been better but they turned out ok. Gotta make a dip tube for clear and the cap. But not sure I can buy the kyrlon for dipping. If not I will continue to spray the cap.
I use a six stage JoJan fletcher with left helical clamps. It really puts the helical in the fletch,mostly in the clamp design but you have to make sure the stand is set correctly.
Danny