I really like 3 pins myself. I feel this keeps my effective range closer, making for more confident shooting, just me though. Also, once you get more than pins, I feel the sight picture is just too clouded with multiple colors. Plus, less pins means less chance at confusion with which pin for which sight, I know it shouldn't happen, but when that big 'ol 12 pointer is coming into range, I don't wanna take any chances!