I hate to post this here, but I wasn't getting any responses under sights and optics, and my family gets together on holidays eats and shoots guns and i need to sight in my new turkey thumper. SO,Just got this new sight (tru glo extreme universal). I love that it's all metal and that it comes with a ghost ring, but it wasn't an easy install. My question is how to I adjusted my POA to POI? I havn't shot it yet, i'm just trying to get an idea that way i'm not out there waisting expensive ammo. Also should i just the ghost ring or stay with the normal rifle sights. This sight when on a Remington 870 supermag (bonecollector) with an IC choke. thanks for any input. Jared