RE: feathers or vanes
I am an actual deer, so I feel that my opinion should be taken into consideration.
I love it when people use feathers, because I hear the arrows coming. I always jump over them or dodge out of the way before the arrow gets to me. I loved Ben Stiller's movie, "Dodgeball."
But this one time, at deercamp, two guys were shooting at me from different angles with feathery arrows. It sounded like I was in a beehive, all this buzzing around. They weren't very good shots, though, so I got away.