I think the arrows I did see hit were more from the arrow kicking a bit as it hit - showing a flash of fletching
Although I have only killed one deer with a bow I have shot thousands of arrows and can honestly say that as Rack-Attack said, if the arrow is flying true, I do not care what the fletching/nock color is, unless it kickes one way or the other it is invisibke!!!! I am amazed C903 has not replied to this one!
Rack-Attack and I are to much alike, I hope one day we can at least meet if not hunt together!