bobcat
I've shot 1 pin for a while. Mine is sighted in at 20. I've got everything covered from up close out to 25 without having to compensate. Mine drops some out beyond 25 so I just hold high if need be. I usually don't shoot more than 25 anyhow, so it works for me.
Save the money and take off two of the pins form your sight. Where to sight your pin in at really depends on what your range will be, and how your bow is set up. A good place to start is 20. Then shoot at all the distances both sides of it and see how you do. You can go from there. Good luck