RE: rt900 question
I just got the same sight myself and the light hole is in the middle. If you read the box it says it's there not only to light up the pins but also shine a little on the orange ring around the sight to give you a better line up and it works. I have a copper john with the light on my other bow and it shines directly on the pins and floods everything out and you can't see your target the rt is a much better design.