ok here is duct tape fletching pics I hope they make sense to you first like I said I cut or tear off 6 pieces of tape
then I will take one piece of tape and go down from the nock about one inch and lay the tape on the shaft so its parallel to the index tab on the nock and I do this on both sides of the shaft
and then I will keep doing this process for the other two fletchings. I tried to think of a way to tell you what I was doing but I cannot so I will just show some pics and hope that gives you an idea or you can check out some vids on youtube.
now you can cut the fletching to 5 inches
and finalally you shape it with scissors to the shape you want it
I hope this helps I done the best I could