I pick one pin and stick with it for practice and shooting now. I missed a great shot some years back when a nice buck came in quick from the right. I lined up and just as I released I realized that I was using the 30 yard pin that I always used for practice, the buck however was about 5 yards away and the arrow just ruffled the fur on his back. He just kept moving on, his attention fixed on what he was looking at to the left of me. Felt like a fool.