The Cosmic Lite is a very good sight. Lightweight, solid, extremely bright pin. I set mine at 25 yds for hunting. I have other yardages marked for practice. I also practice without moving the pin to learn how much to compensate for yardage differences. One thing you can't do with a moveable pin is second guess yourself, when making adjustments. Set it and shoot. If you want to use one pin, another option is to remove the other pins from your sight.