When I got the bow I'm using now, it came with a drop away rest. Now I have never had one before. I noticed something was leaving a mark on the rest. It was the fletching. So I came on here. They asked me if I was shooting the odd color vain up? Um, no. So when I did that, all was good. If your fletching is hitting your rest, its affecting the flight, you may not notice it because all your arrows are flying the same way. It may not be much, but it does.